Topic 34 of 99: Space Science News
Fri, Mar 24, 2000 (13:29) |
Marcia (MarciaH)
The latest from NASA and other agencies
777 responses total.
Topic 34 of 99 [Geo]: Space Science News
Response 1 of 777: Marcia (MarciaH) * Fri, Mar 24, 2000 (13:31) * 27 lines
Space Science News for March 22, 2000
The Earth's magnetosphere is being buffeted by high-speed solar wind
particles from a coronal hole straddling the center of the Sun's disk. The
solar wind velocity has increased from 350 to 600 km/s during the past 12
hours. Follow the action at http://www.spaceweather.com
SpaceWeather.com
MORE SPACE SCIENCE NEWS:
#1 Curiouser and Curiouser: The exotic world of gamma-ray astronomy has
taken yet another surprising turn with the revelation that half the
previously unidentified high-energy gamma ray sources in our own galaxy
actually comprise a new class of mysterious objects. FULL STORY at
http://spacescience.com/headlines/y2000/ast23mar_1m.htm
Curiouser
and Curiouser
#2 Solar Cycle Update: Is the real Y2K problem just starting? The
solar cycle appears to be on schedule for a peak in mid-2000.
FULL STORY at
http://spacescience.com/headlines/y2000/ast22mar_1m.htm
Solar
Cycle Update
Topic 34 of 99 [Geo]: Space Science News
Response 2 of 777: Marcia (MarciaH) * Fri, Mar 24, 2000 (15:37) * 0 lines
Topic 34 of 99 [Geo]: Space Science News
Response 3 of 777: Marcia (MarciaH) * Fri, Mar 24, 2000 (15:39) * 19 lines
Space Science News for March 24, 2000
The Compton Gamma-ray Observatory is destined for a watery grave in the
remote Pacific on June 3, 2000. At a press conference today, NASA officials
cited human safety concerns in explaining their decision to de-orbit the
satellite, which has revolutionized our understanding of the cosmos during
a highly successful 9 year mission. FULL STORY at
http://spacescience.com/headlines/y2000/ast25mar_1m.htm
Farewell Compton
MORE NEWS: The RADAR Cop in Space -- NASA's IMAGE satellite scheduled for
launch on March 25 will revolutionize our understanding of Earth's
magnetosphere and improve space weather forecasting. FULL STORY at
http://spacescience.com/headlines/y2000/ast24mar_1m.htm
The RADAR Caop in Space
Topic 34 of 99 [Geo]: Space Science News
Response 4 of 777: Marcia (MarciaH) * Mon, Mar 27, 2000 (12:07) * 9 lines
SPACE WEATHER NEWS: On March 25, 2000, a solar flare erupted near
the center of the Sun's disk. It appears that a coronal mass
ejection was launched toward Earth. An interplanetary shock wave
could pass our planet during the next 24 to 48 hours, triggering
moderate geomagnetic activity and aurorae. For more information
and daily updates please visit http://www.spaceweather.com .
SpaceWeather.com
Topic 34 of 99 [Geo]: Space Science News
Response 5 of 777: Marcia (MarciaH) * Wed, Mar 29, 2000 (16:50) * 9 lines
NASA Science News for March 29, 2000
With the discovery of extrasolar planets smaller than Saturn, astronomers
are increasingly convinced that other stars harbor planetary systems like
our own. FULL STORY at
http://www.spacescience.com/headlines/y2000/ast30mar_1.htm
Planet
Hunters on Safari
Topic 34 of 99 [Geo]: Space Science News
Response 6 of 777: Marcia (MarciaH) * Wed, Mar 29, 2000 (20:44) * 15 lines
Space Weather News for March 29-30, 2000
Aurora Watch: Skywatchers in northern Europe, Canada, Alaska, and the
northermost tier of US states could be treated to a display of aurora
borealis tonight thanks to elevated levels of geomagnetic activity late in
the day on March 29.
Also today, the SOHO spacecraft captured beautiful images of a full-halo
coronal mass ejection (CME) from the Sun. Full-halo CMEs are massive
bubbles of hot gas headed either directly toward or away from Earth. This
one appears to have erupted on the back side of the Sun and is proceeding
away from our planet.
Details on both are available at http://www.spaceweather.com
Topic 34 of 99 [Geo]: Space Science News
Response 7 of 777: Marcia (MarciaH) * Thu, Mar 30, 2000 (18:15) * 14 lines
NASA Science News for March 30, 2000
Next Thursday, April 6, three planets and the thin crescent Moon are going
to put on a memorable sky show when the quartet converge inside a circle 9
degrees across. The grouping is just the prelude to a grander alignment of
planets on May 5, 2000. Is doom at hand, as many mystics assert? Find out
by reading the FULL STORY at
http://science.nasa.gov/headlines/y2000/ast30mar_1m.htm
Planets for Dessert
Also, for kids and kids-at-heart, a younger person's version of this
article is available at the NASA Kids web site:
http://kids.msfc.nasa.gov/news/2000/news-planetalign.asp?se
The
Planets Line Up
Topic 34 of 99 [Geo]: Space Science News
Response 8 of 777: Marcia (MarciaH) * Fri, Mar 31, 2000 (18:01) * 43 lines
Propagation Report from ARRL
Geomagnetic indices did rise last Friday, the day before the
contest, but even then the planetary K index rose only briefly to 4.
On Saturday and Sunday the planetary K index was mostly 1 or 2, and
during one period was even 0. What is really interesting is that the
College K index, measured in Alaska where the geomagnetic activity
is higher due to proximity to the polar region, was actually 0 over
six 3 hour periods on Saturday and Sunday.
Solar flux and sunspot numbers were higher this week than last, with
average sunspot numbers up 54 points and average solar flux rising
several points. Solar flux actually peaked for the short term during
the previous week on March 22, when the noon reading at Penticton
was 233.8 and the reading two hours later was 235.6. The low for
week was Tuesday, when solar flux was 200.9. It may go lower this
weekend, if solar flux this Sunday goes below 200.
The predicted solar flux for the next five days, Friday through
Tuesday, is 205, 200, 195, 205 and 210. Flux values may again dip
below 200 around April 10-16, then peak near 250 around April 22 or
23. Possible days of geomagnetic upset, based on the solar rotation
are April 18 and 19 and April 28.
MSNBC ran another story this week on the so-called solar heartbeat.
You can see the article at http://www.msnbc.com/news/389042.asp,
which explains a theory concerning how layers of gas rotating at
different speeds may affect the formation of sunspots and solar
flares. MSNBC also ran a story about a new solar satellite that was
launched last Saturday. Called IMAGE, or Imager for
Magnetosphere-to-Aural Global Exploration, it will be used to study
the relationship between solar wind and the earth's magnetosphere.
It will deploy four wire antennas that are each 820 feet long,
making it the longest artificial object in space. Read about it at
http://www.msnbc.com/news/386647.asp?0a=235A162. NASA also ran a
story on the IMAGE at
http://science.msfc.nasa.gov/headlines/y2000/ast27mar_1m.htm.
Sunspot numbers for March 23 through 29 were 236, 230, 243, 255,
227, 232 and 238 with a mean of 237.3. 10.7 cm flux was 224.1,
218.9, 205.1, 211.3, 204.9, 200.9 and 208.8, with a mean of 210.6,
and estimated planetary A indices were 11, 10, 8, 5, 5, 5 and 9,
with a mean of 7.6.
Topic 34 of 99 [Geo]: Space Science News
Response 9 of 777: Marcia (MarciaH) * Fri, Mar 31, 2000 (20:13) * 9 lines
NASA Science News for April 1, 2000
On April Fools Day, 2000, NASA researchers are questioning
the fate of five high-flying sweet treats that disappeared
after a meteor balloon flight in April 1999.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast01apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 10 of 777: Marcia (MarciaH) * Mon, Apr 3, 2000 (14:51) * 12 lines
NASA Science News for April 3, 2000
Like blood pulsing in an artery, newly discovered currents
of gas beat deep inside the Sun, speeding and slackening
every 16 months. The solar "heartbeat" throbs in the same
region of the Sun suspected of driving the 11-year cycle of
solar eruptions. Scientists are hopeful that this pulse can help
them unravel the origin and operation of the solar cycle.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast03apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 11 of 777: Marcia (MarciaH) * Wed, Apr 5, 2000 (00:10) * 13 lines
Space Weather News for April 4-5, 2000
The interplanetary magnetic field in the vicinity of Earth turned southward
on April 4. This condition often creates a weak point in our planet's
magnetospheric shielding against the solar wind. Geomagnetic activity is
currently high. If active conditions continue, observers in northern
Europe, Canada, Alaska and the northern tier of US states could be in for a
display of aurora borealis around local midnight on April 5 (when April 4
turns into April 5). The Moon is just one day past New, meaning that even
very faint Northern Lights could be visible against tonight's dark skies.
For more information see: http://www.spaceweather.com
Topic 34 of 99 [Geo]: Space Science News
Response 12 of 777: Marcia (MarciaH) * Wed, Apr 5, 2000 (15:20) * 13 lines
NASA Science News for April 5, 2000
The Boulder sunspot number exceeded 300 this week as the
sunspot cycle continued its march toward Solar Max. Do these
high sunspot counts mean that the solar maximum will be
bigger than expected? Find out the answer by reading
the FULL STORY at
http://spacescience.com/headlines/y2000/ast05apr_1m.htm
REMINDER: On April 6, 2000, the Moon, Jupiter, Mars and Saturn
will put on a beautiful after-dinner sky show. DETAILS at
http://spacescience.com/headlines/y2000/ast30mar_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 13 of 777: Marcia (MarciaH) * Thu, Apr 6, 2000 (16:02) * 9 lines
NASA Science News for April 6, 2000
During an unplanned rendezvous, the Ulysses spacecraft found
itself gliding though the immense tail of Comet Hyakutake,
revealing that comet tails may be much, much longer than
previously believed. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast06apr_2.htm
Topic 34 of 99 [Geo]: Space Science News
Response 14 of 777: Marcia (MarciaH) * Thu, Apr 6, 2000 (16:25) * 10 lines
Space Science News - April 6, 2000
An interplanetary shock front passed NASA's ACE spacecraft around
1630 UT on April 6, 2000, abruptly raising the solar wind velocity
from 375 to nearly 600 km/s. Usually such disturbances arrive at
Earth about one hour after they pass ACE. Aurorae at middle latitudes
could be in the offing tonight. Follow this developing story at
http://www.spaceweather.com.
Topic 34 of 99 [Geo]: Space Science News
Response 15 of 777: Marcia (MarciaH) * Fri, Apr 7, 2000 (13:16) * 11 lines
NASA Science News for April 7, 2000
Subject: Geomagnetic Storm
A major geomagnetic storm hit our planet on Thursday after an
interplanetary shock wave passed by Earth on April 6, 2000.
Displays of aurora borealis were spotted in Europe, Asia, Canada,
Alaska and in the continental US as far south as North Carolina.
The storm appears to be subsiding, but forecasters note that more
aurorae might be visible Friday night. FULL STORY at
http://spacescience.com/headlines/y2000/ast07apr_2m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 16 of 777: Marcia (MarciaH) * Fri, Apr 7, 2000 (23:36) * 49 lines
Propagation Forecast Bulletin 14
April 7, 2000
The sunspot number took a big leap this week, rising to 301 on
Sunday. It has not been this high since November 12 of last year,
when it was 324. Two days prior on November 10 meters the solar flux
was 343, which is still the record for this cycle. The average
sunspot count for the week was only up about 8 points though, and
average solar flux was about the same as last week.
Solar flux is a measurement of 2.8 GHz energy from the sun, measured
at the Dominion Radio Astrophysical Observatory operated by the
National Research Council Canada in Penticton, British Columbia. You
can visit the observatory web site at http://www.drao.nrc.ca/.
Sunspot numbers are calculated by multiplying the number of visible
sunspot groups by 10, and adding the number of individual spots in
all the groups. A multiplication factor is also used, and it differs
for each observatory. You can see a complete explanation for sunspot
numbers and their derivation at
http://spacescience.com/headlines/y2000/ast05apr_1m.htm.
Geomagnetic indices have been high this week, with the average
planetary A index almost double last week's number. The A index was
in double-digits every day, with April 4 being the most disturbed.
The planetary A index was 21, with planetary K indices as high as 5,
and the mid-latitude index at 6 during the same period.
Coming up on Saturday and Sunday is the HF CW weekend for the Japan
International DX Contest. Unfortunately, as this bulletin is being
written on Thursday night, a major geomagnetic storm is raging. An
interplanetary shock wave passed earth at 1730z on April 6, and
Aurora have been spotted in North America as far south as North
Carolina. The planetary K index for the end of thez day on Thursday
was 8, and the A index was 56. The Boulder K index at 0300z on
Friday is also 8. A severe geomagnetic storm began at 0100z on April 7.
For the next five days, Friday through Tuesday, the expected
planetary A index is 30, 20, 15, 10 and 7. The predicted solar flux
for the same five days is 175, 180, 180, 175 and 170. Solar flux is
expected to rise above 200 again around April 14 and stay there well
into the month of May.
Sunspot numbers for March 30 through April 5 were 225, 248, 287,
301, 252, 184 and 221 with a mean of 245.4. 10.7 cm flux was 205.5,
225.4, 222.9, 219.3, 215.4, 206.7 and 194.4, with a mean of 212.8,
and estimated planetary A indices were 10 meters, 19, 14, 16, 12, 21
and 12, with a mean of 14.9.
Topic 34 of 99 [Geo]: Space Science News
Response 17 of 777: Marcia (MarciaH) * Mon, Apr 10, 2000 (14:20) * 9 lines
NASA Science News for April 10, 2000
On the heels of NASA's 7th annual Great Moonbuggy Race, engineers
from the Apollo program discuss the challenges of building the original
Lunar Rover. This story includes RealVideo of one of the original
rovers in action on the Moon. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast10apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 18 of 777: Marcia (MarciaH) * Tue, Apr 11, 2000 (17:29) * 10 lines
NASA Science News for April 11, 2000
Where's the Edge?: Will humans always be confined to the Solar
System? Not if NASA's Advanced Space Transportation Program
has a say in the matter! Find out how scientists are working to turn
science fiction into standard practise with new and innovative ways
to reach the stars. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast11apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 19 of 777: Marcia (MarciaH) * Wed, Apr 12, 2000 (12:48) * 8 lines
NASA Science News for April 12, 2000
A group of volunteer scientists is converging on Huntsville for
an out-of-this-world meeting -- the High Energy Astrophysics
Workshop for Amateur Astronomers. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast12apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 20 of 777: Marcia (MarciaH) * Fri, Apr 14, 2000 (14:47) * 11 lines
NASA Science News for April 14, 2000
The sled dogs of California's Eastern Sierra are unhappy. Why? A
persistent La Niña condition in the Pacific has left the mountain range
with less than its usual supply of snow. As data continue to flow in from
Earth orbit, NASA scientists are working to understand how El Niño and La
Niña affect our global climate. FULL STORY at
http://spacescience.com/headlines/y2000/ast14apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 21 of 777: Marcia (MarciaH) * Mon, Apr 17, 2000 (13:35) * 9 lines
NASA Science News for April 17, 2000
NASA's Cassini spacecraft, currently en route to Saturn, has
successfully completed its passage through our solar system's asteroid belt
between Mars and Jupiter. FULL STORY at
http://www.spacescience.com/headlines/y2000/ast17apr_3.htm
Topic 34 of 99 [Geo]: Space Science News
Response 22 of 777: Marcia (MarciaH) * Tue, Apr 18, 2000 (20:40) * 12 lines
NASA Science News for April 18, 2000
April's Lyrid Meteor Shower: The oldest known meteor shower peaks
on the morning of April 22. Bright moonlight will reduce the
number of shooting stars that are easy to see, but many meteor
enthusiasts will be watching anyway because it's been over 3 months
since the last major meteor display.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast18apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 23 of 777: Marcia (MarciaH) * Fri, Apr 21, 2000 (15:37) * 7 lines
NASA Science News for April 21, 2000
Amateur astronomers attended a unique meeting in mid-April to
learn about high-energy astrophysics and how they can participate
in it. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast21apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 24 of 777: Marcia (MarciaH) * Mon, Apr 24, 2000 (13:05) * 10 lines
NASA Science News for April 24, 2000
Like an excited kid hoping to snag a fly ball at a professional
baseball game, NASA's Stardust spacecraft has extended its
high-tech "catcher's mitt" to collect a valuable space
souvenir -- a batch of interstellar dust particles.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast24apr_1.htm
Topic 34 of 99 [Geo]: Space Science News
Response 25 of 777: Marcia (MarciaH) * Tue, Apr 25, 2000 (15:05) * 11 lines
NASA Science News for April 25, 2000
Stargazers around the globe were treated to an unexpected and rare
display of red-colored aurora on April 6-7, 2000, after a vigorous
interplanetary shock wave passed by Earth. This story includes a
gallery of more than 40 images showing the aurora borealis from
Europe and over parts of the United States as far south as Florida.
FULL STORY at
http://www.spacescience.com/headlines/y2000/ast25apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 26 of 777: Marcia (MarciaH) * Wed, Apr 26, 2000 (01:09) * 9 lines
NASA Science News for April 26, 2000
Using NASA's Chandra X-ray Observatory, a team of scientists
has attacked one of astronomy's oldest and thorniest problems,
determining the distance to a cosmic object. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast26apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 27 of 777: Marcia (MarciaH) * Wed, Apr 26, 2000 (13:32) * 39 lines
EXPLODING STAR FEATURED ON WEB SITE
Wednesday, April 26, 2000 16:04
A spectacular view of an exploding star was released today on a new
web site launched to mark the Hubble Space Telescope's 10th year in
orbit.
The multi-coloured fireball, some 6,500 light years from Earth in the
constellation Aquila, looks like a giant eye in space.
A few thousand years ago a dying star about the same size as the Sun
erupted and threw off its outer layers to create the "planetary
nebula" NGC 6751.
Shells of gas were hurled into space at speeds of 25 miles per
second, glowing with the strong ultra-violet radiation emitted by the
star's hot exposed core.
The celestial cataclysm offers a sobering vision of what is in store
for us.
Our own Sun is predicted to undergo the same death throes in about
six billion years' time. When it happens nothing in the Solar System,
including the Earth, will escape destruction.
The image is one of a number of dramatic pictures now available on
the new Internet site http://hubble.stsci.edu
Others include infant galaxies that existed billions of years ago,
and tall, gaseous pillars that serve as incubators for embryonic
stars.
NGC 6751 shows several poorly understood features. Blue regions mark
the hottest glowing gas, forming a ring around the central stellar
remnant.
Orange and red colours mark the locations of cooler gas, which tends
to lie in long streamers pointing away from the central star, and in
a tattered ring around the edge of the nebula.
The origin of the cooler clouds within the nebula is still uncertain,
but the streamers are evidence that they are affected by radiation
and raging winds from the hot star at the centre. The star's surface
temperature is estimated to be a scorching 140,000C.
Hubble will be decommissioned in 2010 and replaced by the even more
powerful Next Generation Space Telescope.
© Press Association
Thanks for this, Maggie*
Topic 34 of 99 [Geo]: Space Science News
Response 28 of 777: Spring's Scribe (MarciaH) * Thu, Apr 27, 2000 (14:27) * 10 lines
NASA Science News for April 27, 2000
An international team of cosmologists has released the first detailed
images of the universe in its infancy. Analysis of the images is
already shedding light on some of cosmology's outstanding mysteries
-- the nature of the matter and energy that dominate intergalactic
space and whether space is "curved" or "flat." FULL STORY at
http://spacescience.com/headlines/y2000/ast27apr_1.htm
Topic 34 of 99 [Geo]: Space Science News
Response 29 of 777: Spring's Scribe (MarciaH) * Fri, Apr 28, 2000 (01:24) * 8 lines
NASA Science News for April 28, 2000
NASA scientists are working to solve the need for computer speed
using light itself to accelerate calculations and increase data bandwidth.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast28apr_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 30 of 777: Spring's Scribe (MarciaH) * Fri, Apr 28, 2000 (20:35) * 29 lines
Propagation Forecast Bulletin 17 - April 28, 2000
Sunspots and solar flux were up this week. The average sunspot
number was up over 40 points and average solar flux rose over 30
points over the past week. Geomagnetic indices have been mostly
quiet, with April 24 the most active day.
Last week's bulletin ARLP016 said that the solar flux should be up
around 220 this weekend, but conditions are not cooperating.
Although activity has been higher this week than last, it is not as
high as expected.
Solar flux is expected to hover around 175 to 185 until April 8,
then dip below 170, and rise to around 200 from May 19 through 28.
The planetary A index prediction indicates unsettled conditions for
Friday. The A index should stay quiet from this weekend until May 6
and 7, when it may rise to 15.
Predicted solar flux for the next five days, Friday through Tuesday
is 180, 175, 175, 180 and 180.
Sunspot numbers for April 20 through 26 were 179, 211, 226, 252,
222, 229 and 197 with a mean of 216.6. 10.7 cm flux was 180.6,
187.3, 201.8, 206.1, 205.6, 202.5 and 189.9, with a mean of 196.3,
and estimated planetary A indices were 14, 10, 7, 8, 21, 6 and 4,
with a mean of 10.
Topic 34 of 99 [Geo]: Space Science News
Response 31 of 777: Marcia (MarciaH) * Mon, May 1, 2000 (01:23) * 10 lines
NASA Science News for May 1, 2000
One year ago this week killer tornadoes raged across Oklahoma.
Now, NASA scientists are figuring out how to predict such storms
using lightning data from Earth-orbit.
FULL STORY at http://science.nasa.gov/headlines/y2000/ast01may_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 32 of 777: Marcia (MarciaH) * Mon, May 1, 2000 (02:59) * 12 lines
Space Weather News for May 1, 2000
A coronal mass ejection (CME) from a small sunspot group was recorded
by the Solar and Heliospheric Observatory on April 30, 2000. If
material from the eruption is heading toward Earth, as animations
of the CME suggest, then the shock wave will probably arrive
late on May 2nd or sometime on May 3rd. Forecasters estimate a
30% chance of active geomagnetic conditions at middle-latitudes
on May 3, 2000.
For more information, please visit http://www.spaceweather.com
Topic 34 of 99 [Geo]: Space Science News
Response 33 of 777: Marcia (MarciaH) * Mon, May 1, 2000 (03:25) * 7 lines
Since no one apparently cares to read about this in News I ave created a
new topic in Geo for it. Too bad I could not telnet and link the two of
them together. But, that is the way it is, and no one seems willing to do
it for me.
http://www.spring.net/yapp-bin/restricted/read/Geo/33/new
Topic 34 of 99 [Geo]: Space Science News
Response 34 of 777: What's happenin' in the news? (sprin5) * Mon, May 1, 2000 (09:29) * 1 lines
I'll do it ! Just email me or ask. In the instructions say "link news topic 21 to science" or whatever it is.
Topic 34 of 99 [Geo]: Space Science News
Response 35 of 777: Marcia (MarciaH) * Mon, May 1, 2000 (14:51) * 8 lines
Please link this topic to Geo... I am most grateful. If you want to link
it to science that is ok, too, but too many duplicates mess up my hot
list!
Mahalo plenty!
Topic 34 of 99 [Geo]: Space Science News
Response 36 of 777: What's happenin' in the news? (sprin5) * Mon, May 1, 2000 (15:23) * 1 lines
Linkage complete.
Topic 34 of 99 [Geo]: Space Science News
Response 37 of 777: Marcia (MarciaH) * Mon, May 1, 2000 (15:52) * 3 lines
*Big Hugs*
Mahalo!
Topic 34 of 99 [Geo]: Space Science News
Response 38 of 777: Marcia (MarciaH) * Tue, May 2, 2000 (14:21) * 10 lines
NASA Science News for May 2, 2000
The eta Aquarid meteor shower, caused by bits of debris
from Halley's Comet, will peak on May 5-6, 2000. Lunar
observers will be watching the Moon on the nights after
the shower for possible signs of meteorite impacts.
FULL STORY at
http://www.spacescience.com/headlines/y2000/ast02may_1.htm
Topic 34 of 99 [Geo]: Space Science News
Response 39 of 777: Maggie (sociolingo) * Tue, May 2, 2000 (16:57) * 49 lines
I couldn't see this posted elsewhere, sorry if i've duplicated, I only
just picked it up.
http://dailynews.yahoo.com/h/nm/20000413/sc/space_quasar.html
Astronomers Spot Most Distant Quasar Ever Observed WASHINGTON (Reuters) -
Astronomers peering across the universe have spotted the most distant
object ever observed, a quasar 26 billion light-years away, researchers
said on Thursday.
This quasar, confirmed as the most faraway object by scientists working
with the Sloan Digital Sky Survey, probably started sending its light in
Earth's direction when the universe was less than a billion years old, the
researchers said in a statement.
The universe is thought to be about 14 billion years old now, give or take
a couple billion years. And it has been expanding since the theoretical
Big Bang that started it all.
Quasars are extremely bright but extremely compact objects thought to be
powered by matter-sucking black holes as massive as a billion suns.
Michael Turner, a spokesman for the Survey at the University of Chicago,
said this means that the quasar is about 26 billion light-years away now,
but because of the expansion of the universe, it used to be a lot closer.
``When it emitted the light, it was only about 4 billion light-years from
the space in the universe where Earth would be eventually,'' Turner said
in a telephone interview. ``It's only when we talk about the most distant
objects that we have to take the expansion of he universe into account.''
A light-year is the distance light travels in a year, about 6 trillion
miles.
Another way to think about cosmic distances and ages is to determine how
bent the light gets as the universe expands. The more bent it gets to the
red end of the spectrum, the older the object is determined to be. This is
known as redshift.
This newly observed object has a redshift of 5.8, the highest ever
measured. It is in fact too red to be seen by the human eye, even with the
most sophisticated equipment. But it was observed through data gathered by
the Sky Survey last month, and scientists confirmed its distance last
week.
An image of the distant quasar can be viewed on the World Wide Web at
http://www.sdss.org.
Topic 34 of 99 [Geo]: Space Science News
Response 40 of 777: Marcia (MarciaH) * Tue, May 2, 2000 (17:06) * 4 lines
Interesting. I wonder if it is the same things as the Keck found a couple
of weeks ago. I shall hunt it up and see. Thanks, Maggie!
Topic 34 of 99 [Geo]: Space Science News
Response 41 of 777: Marcia (MarciaH) * Tue, May 2, 2000 (17:13) * 3 lines
A suggestion - please! We post articles and comments of length in Geo 24 for space stuff and this should just be for posting the news releases. Does that sound ok?
Topic 34 of 99 [Geo]: Space Science News
Response 42 of 777: Marcia (MarciaH) * Wed, May 3, 2000 (15:54) * 11 lines
NASA Science News for
May 3, 2000
A team of explorers including astrobiologist Richard Hoover and
astronauts Jim Lovell and Owen Garriott traveled to Antarctica
in January 2000 to search for meteorites and extreme-loving
microbes.
FULL STORY at http://science.nasa.gov/headlines/y2000/ast03may_1m.htm
Topic 34 of 99 [Geo]: Space Science News
Response 43 of 777: What's happenin' in the news? (sprin5) * Wed, May 3, 2000 (16:01) * 1 lines
The gps devices just got accurate down to 5 to 10 feet or better. A friend says he can see when he changes lanes on his now!
Topic 34 of 99 [Geo]: Space Science News
Response 44 of 777: Marcia (MarciaH) * Wed, May 3, 2000 (16:06) * 1 lines
GPS stuff has gotten very sophisticated with an enormous constellation of satellites tracking your every move. Great stuff! That is the next thing on my son's wish list - he has installed ground monitors on Kilauea to check for movement in the surface (Supposedly, the entire seaward flank of Kilauea is gonna break off and we will all be dead from the terific tsunami generated thereby!)
Topic 34 of 99 [Geo]: Space Science News
Response 45 of 777: geospring (sprin5) * Wed, May 3, 2000 (19:35) * 1 lines
Will you let us know when the tsunami heads this way so we can climb up onto some hills?
Topic 34 of 99 [Geo]: Space Science News
Response 46 of 777: Marcia (MarciaH) * Wed, May 3, 2000 (19:43) * 1 lines
If you get a tsunami, I shall call you live and direct as you are fleeing! Count on it - and you'd better take my buddy with you *grin* You are both crucial to my well-being! (You gotta see this wallpaper on a good monitor! It is gorgeous! Hope he likes it, as well...)
Topic 34 of 99 [Geo]: Space Science News
Response 47 of 777: Marcia (MarciaH) * Thu, May 4, 2000 (15:55) * 18 lines
Thursday's Classroom for May 4, 2000
The Amazing Moon Buggy + Planetary Alignment lessons
This week, Thursday's Classroom takes a wild ride on the original
interplanetary Sport Utility Vehicle: the amazing Apollo Moon Buggy.
Students will tap their toes to the beat of the "Moon Buggy Boogie," play a
stimulating game of "Lunar Rover Lunacy," covert measurements from English
to metric units in "Moon Math," and more...
Please visit: http://www.thursdaysclassroom.com
Thursday's Classroom
Also, a note for recent subscribers: The March 30, 2000, episode of
Thursday's Classroom features lessons and activities related to the
May 5, 2000, planetary alignment.
See: http://www.thursdaysclassroom.com/index_30mar00.html
Planetary
Alignments
Topic 34 of 99 [Geo]: Space Science News
Response 48 of 777: Marcia (MarciaH) * Thu, May 4, 2000 (15:59) * 16 lines
NASA Science News for May 4, 2000
Interplanetary Low Tide
Tidal forces on Earth caused by other planets in the solar
system will be at a low point this week when Mercury, Venus,
Mars, Jupiter and Saturn "line up" on the far side of the
Sun. The alignment won't be visible to the naked-eye, but
there will be a meteor shower that could produce a nice sky
show. FULL STORY at
http://spacescience.com/headlines/y2000/ast04may_1m.htm
Interplanetary Low Tide
See also:
http://spacescience.com/headlines/y2000/ast02may_1.htm
5/5/2000: The Meteor Shower
Topic 34 of 99 [Geo]: Space Science News
Response 49 of 777: Marcia (MarciaH) * Thu, May 4, 2000 (18:17) * 12 lines
Three Planets and a Coronal Mass Ejection
Space Weather News for May 4, 2000
The planets Mercury, Jupiter and Saturn have entered the field of view of
instruments on board the Solar and Heliospheric Observatory as they
approach the Sun for Friday's much-touted conjunction. Animations of this
rare event include two coronal mass ejections with three planets in the
background. For more information, please see http://www.spaceweather.com
SpaceWeather.com
Topic 34 of 99 [Geo]: Space Science News
Response 50 of 777: Marcia (MarciaH) * Fri, May 5, 2000 (15:25) * 48 lines
Propagation Forecast Bulletin 18 - May 5, 2000
It seems odd to view the solar disk at the peak of the solar cycle
and see few sunspots, but that was the case this week. Solar flux, a
measure of 2.8 GHz energy from the sun which correlates roughly with
sunspots and the ionization of the particles which reflect HF radio
waves, were down sharply this week. On Thursday, when this bulletin
was written, the thrice daily solar flux numbers were 133, 134.5 and
134.7. Solar flux has not been this low since January. Average
solar flux for this week dropped over thirty points, and average
sunspot numbers were down over seventy points, when compared to the
previous week.
Geomagnetic conditions were fairly unsettled as well, with planetary
A indices in the double-digits throughout the week, and K indices
often as high as 4. There weren't any severe geomagnetic storms, but
geomagnetic conditions were rarely quiet.
Looking at monthly trends, the average monthly solar flux for
January through April was 159, 174.1, 208.2 and 184.2.
The lower activity should continue for the next few days. Predicted
solar flux for Friday, May 5 through the following Tuesday is 130,
130, 135, 145 and 150. The predicted planetary A index for those
days is 10, 15, 12, 10 and 10.
KA5WQM wrote to remark on poor 10 meter conditions. He said that in
central Oklahoma the band has been unusable since last Thursday.
There are a couple of influences to consider. One is the season.
Ten meters is much better right around the equinox, and we are
moving every day closer to summer conditions when occasional short
skip via sporadic E-layer propagation will be the norm.
Of course the other factor is the lower sunspot activity and solar
flux. Doing a path projection from Oklahoma to Hawaii with a solar
flux of 230, there is a good bet for strong openings on 10 meters
from 1800 to 2230z. Lower the solar flux to 170, and the period in
which strong signals are likely over that path shrinks to 1930 to
2130z. With the solar flux at 130, communication is possible, but
strong openings are much less likely. During this month 15 meters
should be far better for long distance HF communications than 10.
Sunspot numbers for April 27 through May 3 were 163, 238, 142, 126,
121, 108 and 113 with a mean of 144.4. 10.7 cm flux was 183.5,
183.4, 174.9, 169.5, 157.7, 152.8 and 137.3, with a mean of 165.6,
and estimated planetary A indices were 13, 17, 12, 11, 14, 18 and
15, with a mean of 14.3.
Topic 34 of 99 [Geo]: Space Science News
Response 51 of 777: Marcia (MarciaH) * Sat, May 6, 2000 (12:08) * 16 lines
Space Weather News for May 6, 2000
The wide field coronagraph on board the orbiting Solar and Heliospheric
Observatory recorded a series of dazzling coronal mass ejections (CMEs) on
May 5, 2000, with Mercury, Jupiter and Saturn in the background. These
eruptions apparently came from active sunspot groups that are just over the
Sun's western limb. CMEs like these, seen in profile, are unusually
beautiful.
This weekend the visible disk of the Sun is remarkably devoid of large
sunspots as we approach the peak of the sunspot cycle in mid-2000.
For more information and images please visit: http://www.spaceweather.com
SpaceWeather.com
Topic 34 of 99 [Geo]: Space Science News
Response 52 of 777: Marcia (MarciaH) * Mon, May 8, 2000 (00:13) * 12 lines
NASA Science News for May 8, 2000
NASA astronomers have collected the first-ever radar images
of a "main belt" asteroid. It's a metallic, dog bone-shaped
rock the size of New Jersey, an apparent leftover from an
ancient, violent cosmic collision. The asteroid, named 216
Kleopatra, was discovered in 1880, but until now, its shape
was unknown. FULL STORY at
http://spacescience.com/headlines/y2000/ast08may_1.htm
An Asteroid goes to the Dogs
Topic 34 of 99 [Geo]: Space Science News
Response 53 of 777: geospring (sprin5) * Mon, May 8, 2000 (17:47) * 1 lines
I saw it, it does look like a giant dog bone.
Topic 34 of 99 [Geo]: Space Science News
Response 54 of 777: Marcia (MarciaH) * Mon, May 8, 2000 (17:53) * 1 lines
Yup! Like the North American Nebula looks like its name, and the Owl Nebula and other goodies up there! Thanks for looking!
Topic 34 of 99 [Geo]: Space Science News
Response 55 of 777: Marcia (MarciaH) * Tue, May 9, 2000 (16:48) * 10 lines
NASA Science News for May 9, 2000
The Sun appeared nearly featureless this weekend as the sunspot
area dropped 10 times below its average value. Nevertheless,
scientists say Solar Max is still on the way.
FULL STORY at http://science.nasa.gov/headlines/y2000/ast09may_1m.htm
Solar Ups and Downs
Topic 34 of 99 [Geo]: Space Science News
Response 56 of 777: Marcia (MarciaH) * Thu, May 11, 2000 (16:10) * 11 lines
NASA Science News for May 11, 2000
Images made by NASA's Chandra X-ray Observatory show for
the first time the full impact of the actual blast wave
from Supernova 1987A. The observations are the first time
that X-rays from a shock wave have been imaged at such an
early stage of a supernova explosion.
FULL STORY at http://spacescience.com/headlines/y2000/ast11may_1m.htm
Impact! Chandra images a young supernova blast wave
Topic 34 of 99 [Geo]: Space Science News
Response 57 of 777: Marcia (MarciaH) * Thu, May 11, 2000 (17:18) * 16 lines
Space Weather News for May 11, 2000
Material from a coronal mass ejection that left the Sun on May 8 is
expected to pass by our planet late on May 11 or early May 12. Depending
on the characteristics of the magnetic field within the disturbance, it
could trigger minor geomagnetic storms on Earth. There is a slim chance of
aurorae at mid-latitudes, but auroral activity will more likely be
concentrated over high latitude regions including northern Europe, Canada
and Alaska.
Visit http://www.spaceweather.com for more information and updates.
SpaceWeather.com
---
Topic 34 of 99 [Geo]: Space Science News
Response 58 of 777: Marcia (MarciaH) * Fri, May 12, 2000 (16:13) * 11 lines
NASA Science News for May 12, 2000
NASA scientists have discovered unexpected spiral-shaped
flames on Earth. By studying these peculiar flames, researchers
hope to mitigate fire hazards on spacecraft and gain new
insights about complex systems in nature. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast12may_1.htm
Not Just Another Old Flame
Topic 34 of 99 [Geo]: Space Science News
Response 59 of 777: Marcia (MarciaH) * Mon, May 15, 2000 (01:05) * 14 lines
NASA Science News for May 15, 2000
A black hole binary star system called XTE J1550-564 has
recently become one of the brightest sources in the x-ray
sky. Astronomers are fascinated by fluctuations in the x-ray
emission from this source, which if converted to sound
waves would feel like the deep rumbling vibrations from a
bass speaker at a rock 'n roll concert. FULL STORY at
http://spacescience.com/headlines/y2000/ast15may_1m.htm
The Humming Black Hole
Topic 34 of 99 [Geo]: Space Science News
Response 60 of 777: Marcia (MarciaH) * Mon, May 15, 2000 (01:33) * 20 lines
Aurora Watching
The Sun is currently entering a peak of storminess, part of
a cycle that lasts 11 years. This causes a stronger "solar
wind," which is a constant stream of charged particles.
When these particles hit the Earth's magnetic field, the
interaction releases visible light, which we in the north
know as the Aurora Borealis, or Northern Lights (there's
the Aurora Australis, or Southern Lights, Down Under).
During these storm peaks, the spectacular auroras can be
visible much further south than usual.
You can learn more about auroras, check out the space
weather forecast, and download aurora videos at
http://www.sec.noaa.gov/
Click here to learn more about auroras.
http://dac3.pfrr.alaska.edu/~pfrr/AURORA/INDEX.HTM
Topic 34 of 99 [Geo]: Space Science News
Response 61 of 777: Marcia (MarciaH) * Mon, May 15, 2000 (17:00) * 12 lines
NASA Science News for May 16, 2000
The planets Venus and Jupiter will pass less than 42 arcseconds
apart on May 17. Because the pair is so close to the Sun, only
the Solar and Heliospheric Observatory will have a good view of
the close encounter, which is similar to the "Christmas Star"
conjunction of 2 BC. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast16may_1.htm?list
A Christmas Star for SOHO
Topic 34 of 99 [Geo]: Space Science News
Response 62 of 777: Marcia (MarciaH) * Tue, May 16, 2000 (01:44) * 12 lines
Full Halo Coronal Mass Ejection
Space Weather News for May 16, 2000
On May 15 a coronagraph on the ESA/NASA Solar and Heliospheric Observatory
captured rare images of a full halo coronal mass ejection with 4 planets
and the Pleiades in the field of view. Material from the eruption could
arrive in the neighborhood of Earth on May 17 or 18.
For more information and animations, visit http://www.spaceweather.com
SpaceWeather.com
Topic 34 of 99 [Geo]: Space Science News
Response 63 of 777: Marcia (MarciaH) * Wed, May 17, 2000 (01:12) * 14 lines
Students take control of a prototype Mars Rover
NASA Science News for May 17, 2000
Students from around the country will take control of a
prototype Mars rover named FIDO as it explores a western
Nevada desert. The FIDO rover is a testbed for future missions,
including the proposed Mars Mobile Lander that is currently
under study for a possible launch in 2003. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast17may_1.htm?list
Heel, FIDO, Heel!
Topic 34 of 99 [Geo]: Space Science News
Response 64 of 777: Marcia (MarciaH) * Wed, May 17, 2000 (21:17) * 23 lines
Gravitational Lenses
The hallmark of a scientific theory is that it makes
predictions about the real world that can be tested.
Interestingly, Einstein's theory of general relativity
posed major problems for verification: The differences it
predicted from Newton's laws were so small they were
extremely difficult to measure -- especially with the
technology available in the early part of the twentieth
century.
One prediction that could be checked concerned a
gravitational field's ability to bend light rays, a
phenomenon known as gravitational lensing. Sir Arthur
Eddington used a solar eclipse in 1919 to test the theory.
He looked at the position of a distant star in line with
the edge of the sun during the eclipse (allowing it to be
observed in the daytime). It appeared to be shifted 1.75
arc seconds from its actual place in the sky. The
gravitational field of the sun was bending the light
arriving from that star, providing an early confirmation of
Einstein's theory.
Topic 34 of 99 [Geo]: Space Science News
Response 65 of 777: Marcia (MarciaH) * Thu, May 18, 2000 (01:09) * 9 lines
To Be or Not to Be, La Nina?
NASA Science News for May 18, 2000
Just last month, scientists were predicting that current La
Niña conditions would persist, but now data from Earth-orbiting
satellites show that it may be on the decline. Is it too soon
to revise the 2000 hurricane forecast? FULL STORY at
http://spacescience.com/headlines/y2000/ast18may_1m.htm
To Be or Not to Be, La Niña?
Topic 34 of 99 [Geo]: Space Science News
Response 66 of 777: Marcia (MarciaH) * Thu, May 18, 2000 (01:43) * 16 lines
I could not resist posting this image. The solar coronal outburst framed the items you can see listed behind the solar image. Quite extraordinary!
Why were conditions so rough on HF?
Noise can get very high, especially here in the Pacific North West. Signals get weaker than normal on some bands, and deep fades occur. Why?
CME -- that's why. What's a CME? A coronal mass ejection is a huge (like, larger than earth... or bigger!) gas bubble
threaded with magnetic field lines. This bubble is ejected from the Sun. This ejection of gas lasts for several hours, and if
it is directed toward the earth, can result in a very high energy bombardment into our atmosphere and ionosphere. And
our Geomagnetic field becomes very active. A highly active Geomagnetic field degrades radio communications
http://hfradio.org/propagation.html#CME1
Topic 34 of 99 [Geo]: Space Science News
Response 67 of 777: Marcia (MarciaH) * Thu, May 18, 2000 (23:56) * 23 lines
Great Ganymede!
NASA Science News for May 19, 2000
This weekend NASA's Galileo spacecraft will pass 808 km above
the surface of our solar system's largest moon, Ganymede. The
spacecraft will hunt for signs of mysterious "cryptovolcanoes"
and collect new data on Ganymede's unique magnetic field. This
story includes plasma wave audio sounds from Ganymede's magnetosphere
recorded during a previous flyby. FULL STORY at
http://spacescience.com/headlines/y2000/ast19may_1.htm
Great Ganymede!
__
Topic 34 of 99 [Geo]: Space Science News
Response 68 of 777: Marcia (MarciaH) * Fri, May 19, 2000 (15:23) * 13 lines
The Secret Lives of Alien Volcanoes
NASA Science News for May 19, 2000
The latest images of Io from NASA's Galileo spacecraft
reveal a bizarre world of hot volcanoes, sulfurous
snowfields, and slip-sliding mountains. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast19may_2.htm?list
The Secret Lives of Alien Volcanoes
Topic 34 of 99 [Geo]: Space Science News
Response 69 of 777: Ginny (vibrown) * Sat, May 20, 2000 (01:17) * 4 lines
Here's some more info on "dark matter".
http://dmtelescope.org
http://www.bell-labs.com/org/physicalsciences/projects/darkmatter/darkmatter.html
Topic 34 of 99 [Geo]: Space Science News
Response 70 of 777: Marcia (MarciaH) * Sat, May 20, 2000 (01:43) * 1 lines
Ooh - good stuff to read on a dark Friday night. But, I am stuck with the W3.1 laptop because my newly installed norton antivirus has frozen the entire computer and everytime it come time to boot the task bar it shuts it down again. and we scandisk and try again with the same results. Now, what do I do?
Topic 34 of 99 [Geo]: Space Science News
Response 71 of 777: Ginny (vibrown) * Sat, May 20, 2000 (02:03) * 3 lines
Yikes, NORTON is hanging your system? I know you mentioned that McAfee caused problems, but I'm surprised about Norton.
There's a way to boot the computer up in "windows safe mode", so you can uninstall whatever is causing problems...let me go look it up.
Topic 34 of 99 [Geo]: Space Science News
Response 72 of 777: Ginny (vibrown) * Sat, May 20, 2000 (02:15) * 13 lines
OK, here's the info from my Windows 95 guide (the one distributed with new PCs).
1. Restart your computer.
2. When you see the following text: "Starting Windows 95...", press and release the F8 function key. This should display a menu.
3. Type the number for the option you want (or select it with the down arrow key).
I would try the "Safe mode" option, that boots Windows with a minimal configuration, and try uninstalling Norton. Hopefully you'll be able to boot the system normally after that.
Then I'd call Norton to complain. Who needs an anti-virus program that causes more problems than an actual virus??
Good luck!
Topic 34 of 99 [Geo]: Space Science News
Response 73 of 777: geospring (sprin5) * Sat, May 20, 2000 (06:34) * 1 lines
Good advice about booting in to Safe Mode. Sometimes this alone will fix some problems.
Topic 34 of 99 [Geo]: Space Science News
Response 74 of 777: Marcia (MarciaH) * Sat, May 20, 2000 (19:45) * 1 lines
That's what I did - as I wrote in computer conf/virus topic, I think the problem might just be the factthat I enabled Norton to check all drives at startup. There is one imbedded (know how to rid of them?!) program which is the first to load on the task bar and that is precisely where the problem came and it would shut down completely each time. I slept on it and came up with the same idea as you did and you can see that it worked. I deleted the Norton but kept the zipped download so I can reinstall it if my conclusions are correct - and have it not examine the drives until everything is up and running. However, if it still has a problem with that particular program (which I never use - an internet connection which I do not prefer but NEC did...), it will continue to shut down my computer at every encounter?! Yes?
Topic 34 of 99 [Geo]: Space Science News
Response 75 of 777: Marcia (MarciaH) * Sat, May 20, 2000 (19:53) * 1 lines
Someone even gave me a crutch I did not remember till just now...Your computer's FATE lies in F8. It is a good one to remember!
Topic 34 of 99 [Geo]: Space Science News
Response 76 of 777: Marcia (MarciaH) * Mon, May 22, 2000 (14:44) * 12 lines
Radio JOVE -- NASA helps students tune in to radio bursts from Jupiter
Jupiter is a source of powerful radio bursts that can
produce exotic sounds on common ham radio receivers.
NASA scientists are helping students tune in to the
giant planet as part of an innovative educational program
called Radio JOVE. FULL STORY at
http://spacescience.com/headlines/y2000/ast22may_1.htm?list
Radio JOVE
Topic 34 of 99 [Geo]: Space Science News
Response 77 of 777: Ginny (vibrown) * Tue, May 23, 2000 (13:47) * 5 lines
Do you know the name of the embedded program?
If it's in your Startup folder, you should be able to delete it from the Startup folder to keep it from running. If it's not there, it might be in the win.ini or system.ini file; at least I think Windows 95/98 still has those files...they would be in the c:\windows or c:\windows\system directory.
The only other place I can think of would be the Windows Registry, but you'd have to hunt through the Registry keys for it. There should be a Registry Editor program (regedit.exe or regedt32.exe) in the c:\windows or c:\windows\system directory. (I'm not sure exactly where it is on Windows 95/98, and I'm on and NT system right now.)
Topic 34 of 99 [Geo]: Space Science News
Response 78 of 777: Marcia (MarciaH) * Tue, May 23, 2000 (17:03) * 15 lines
(Answered the above in The Software/Computer conference)
Galileo swoops by the largest moon in the Solar System
NASA Science News for May 23, 2000
On Saturday, May 20, 2000, NASA's Galileo spacecraft successfully
flew past the largest moon in our solar system -- Ganymede,
which orbits around Jupiter. Galileo dipped to 809 kilometers
(503 miles) above the surface in the spacecraft's first flyby
of Ganymede since May 7, 1997. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast23may_1.htm?list
A Big Moon Close Up
Topic 34 of 99 [Geo]: Space Science News
Response 79 of 777: Marcia (MarciaH) * Tue, May 23, 2000 (17:06) * 1 lines
Ginny, the really odd thing is that it does not show up in the taskbar remove/add nor in the start/startup folder... it is so exasperating!
Topic 34 of 99 [Geo]: Space Science News
Response 80 of 777: Marcia (MarciaH) * Wed, May 24, 2000 (17:41) * 12 lines
NASA Science News for May 24, 2000
Crystal balls rarely have anything to do with science, but soon
NASA researchers will be using a set of quartz spheres to examine
one of the last, untested portions of Einstein's General Theory of
Relativity. The spheres make up four extraordinary gyroscopes
heading for Earth orbit on board the Gravity Probe B mission in 2002
to measure the twisting and compression of space and time around
our rotating planet. FULL STORY at
http://spacescience.com/headlines/y2000/ast24may_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 81 of 777: Marcia (MarciaH) * Fri, May 26, 2000 (15:42) * 10 lines
NASA Science News for May 26, 2000
The pioneering space station concepts of the mid-1950's
don't look much like the erector-set habitat in orbit today.
Read about Werner von Braun's early designs for an outpost in
space and how he advocated his ideas to the public 50 years
ago. FULL STORY at
http://science.nasa.gov/headlines/y2000/ast26may_1m.htm?l=NzMwMjk2IG1hcmNpQEFMT0hBLk5FVCBTTkdMSVNUIC66FwsfrRgz
Topic 34 of 99 [Geo]: Space Science News
Response 82 of 777: Marcia (MarciaH) * Mon, May 29, 2000 (01:19) * 12 lines
What's the Matter with Antimatter?
NASA Science News for May 29, 2000
Antimatter -- it may be the ultimate fuel for space travel,
but right now it is fleeting, difficult to work with and
measured in atoms instead of kilograms or pounds! In this
two-part story we'll explore what antimatter is, and how it
may be used for space propulsion. FULL STORY at
http://spacescience.com/headlines/y2000/ast29may_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 83 of 777: Marcia (MarciaH) * Tue, May 30, 2000 (14:00) * 11 lines
Solar Activity Puffs Up Earth's Atmosphere
NASA Science News for May 30, 2000
As a result of the approaching solar maximum, Earth's
atmosphere is puffed up like a marshmallow over a campfire
leading to extra drag on Earth-orbiting satellites.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast30may_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 84 of 777: Marcia (MarciaH) * Wed, May 31, 2000 (01:36) * 11 lines
Advanced Space Propulsion Workshop begins this week
NASA Science News for May 31, 2000
Scientists and engineers are gathering in Pasadena today to discuss
cutting-edge research in space transportation at a workshop sponsored
by the NASA Marshall Space Flight Center and the Jet Propulsion Laboratory.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast31may_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 85 of 777: Marcia (MarciaH) * Thu, Jun 1, 2000 (14:36) * 17 lines
Arctic Asteroid!
NASA Science News for June 1, 2000
In January, 2000, a seven meter, 200 metric ton rock from space
streaked across the skies of western Canada. The meteor was at
least as bright as the Sun before it exploded over the Yukon
Territory. Scientists have recovered fragments of the carbon-rich
rock, which researchers say is the most valuable meteorite find in
at least 30 years.
FULL STORY at
http://spacescience.com/headlines/y2000/ast01jun_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 86 of 777: Marcia (MarciaH) * Thu, Jun 1, 2000 (14:39) * 20 lines
Yukon Meteor Blast
Thursday's Classroom for June 1, 2000
On January 18, 2000, a "small" 200 metric ton asteroid streaked across the
skies of western Canada and exploded in the atmosphere. Now, scientists
have recovered fragments of the space rock and discovered that they are
members of a rare class of meteorites possibly containing amino acids and
other organic compounds.
In this week's episode of Thursday's Classroom, students can learn more
about the Yukon meteor by attending a "Cosmic BBQ," calculating "Fractions
of a Meteorite" and more.
VISIT: http://www.thursdaysclassroom.com
Thursday's Classroom: Yukon
Meteor Blast
Topic 34 of 99 [Geo]: Space Science News
Response 87 of 777: Marcia (MarciaH) * Fri, Jun 2, 2000 (17:26) * 14 lines
Mercury Rising -- see Mercury and the Moon this Saturday
NASA Science News for June 2, 2000
There are two really good times to see Mercury this year and next week
is one of them. Good Mercury-watching begins this Saturday evening,
June 3, when a slender crescent Moon and the elusive planet appear
together for stargazers just after sunset. Mercury's apparition
as an evening star will continue through mid-June.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast02jun_1.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 88 of 777: Marcia (MarciaH) * Mon, Jun 5, 2000 (13:32) * 16 lines
First Light for a Space Weather Satellite
NASA Science News for June 5, 2000
NASA's IMAGE mission, a unique satellite dedicated to the
study of space storms, has returned its first pictures of
electrified gas surrounding our planet. Using antennas as
large as the Empire State Building, IMAGE is taking
an unprecedented look at Earth's magnetic environment and
its response to fierce gusts of solar wind.
FULL STORY at
http://spacescience.com/headlines/y2000/ast05jun_1m.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 89 of 777: Marcia (MarciaH) * Mon, Jun 5, 2000 (19:34) * 14 lines
June's Invisible Meteors
NASA Science News for June 6, 2000
During the next week thousands of meteors will streak through
the sky, but don't expect to see many. They are the Arietids and
zeta Perseids -- the most intense daytime meteor showers of the
year. The best way for many meteor enthusiasts to enjoy the show
is by listening to meteor echoes on a common FM or ham radio.
FULL STORY at
http://spacescience.com/headlines/y2000/ast06jun_1m.htm?list
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Topic 34 of 99 [Geo]: Space Science News
Response 90 of 777: Marcia (MarciaH) * Tue, Jun 6, 2000 (00:53) * 36 lines
Solar activity report for 6/5/00
Region 9026 continues to produce M-class flares,
and the A index increases.
Sunspots :
132
SFI : 171
A index : 21
K index :
3
Conditions for the last 24 hours :
Solar activity was
moderate. The geomagnetic field was unsettled to active.
Forecast for the next 24 hours :
Solar activity will be
moderate to high. The geomagnetic field will be unsettled
to active.
Solar activity forecast
SOLAR ACTIVITY IS EXPECTED TO BE AT MODERATE TO HIGH
LEVELS. REGION 9026 WILL LIKELY PRODUCE M-CLASS FLARES
WITH AN ISOLATED CHANCE OF AN X-CLASS FLARE.
Geomagnetic activity forecast :
THE GEOMAGNETIC FIELD IS
EXPECTED TO CONTINUE AT UNSETTLED TO ACTIVE CONDITIONS
THROUGH DAY ONE. MOSTLY QUIET TO UNSETTLED LEVELS ARE
EXPECTED ON DAY TWO. UNSETTLED WITH OCCASIONAL ACTIVE
PERIODS ARE LIKELY ON DAY THREE DUE TO A FAVORABLY
POSITIONED CORONAL HOLE AND THE POSSIBILITY OF EFFECTS FROM
THIS MORNING'S C4/CME AT 05/0325Z.
Topic 34 of 99 [Geo]: Space Science News
Response 91 of 777: Marcia (MarciaH) * Tue, Jun 6, 2000 (01:00) * 3 lines
The above post was from a Yahoo weather club of which I am a memeber. There is another club I'd like you to consider if you are logged into Yahoo, Jack and I would be happy for you to join the conversation going on in there.
http://clubs.yahoo.com/clubs/seti2000
Topic 34 of 99 [Geo]: Space Science News
Response 92 of 777: Marcia (MarciaH) * Tue, Jun 6, 2000 (18:15) * 11 lines
Here Comes the Sun!
Space Weather News for June 6, 2000
An intense "X-class" solar flare today was followed by a full-halo coronal
mass ejection. Material from the leading edge of the disturbance is
expected to arrive on Thursday, June 8, with possible auroral displays to
follow. For images and updates please visit http://www.spaceweather.com
SpaceWeather.com
Topic 34 of 99 [Geo]: Space Science News
Response 93 of 777: Marcia (MarciaH) * Wed, Jun 7, 2000 (21:34) * 19 lines
More Solar Eruptions on June 7, 2000
Space Weather News for June 7, 2000
Following close on the heels of yesterday's two X-class solar flares, a
third powerful X-class flare erupted today at approximately 1545 UT. Soon
afterward, coronagraphs on the orbiting Solar and Heliospheric Observatory
detected a faint full halo coronal mass ejection. It appears to be heading
in the direction of Earth at ~800 km/s. This latest full halo CME will
probably extend the geomagnetic disturbances expected to begin on Thursday
when an interplanetary shock wave spawned by a CME on June 6 collides with
our planet's magnetosphere. Aurora watchers are advised to be on the alert
for Northern Lights beginning after sunset on Thursday, June 8.
For more information, please visit http://www.spaceweather.com
SpaceWeather.com
Topic 34 of 99 [Geo]: Space Science News
Response 94 of 777: Marcia (MarciaH) * Thu, Jun 8, 2000 (13:49) * 13 lines
Impact: An Interplanetary Shock Wave Passes Earth
Space Weather News for June 8, 2000
A vigorous shock wave passed NASA's ACE solar wind monitoring spacecraft
this morning at 0842 UT. Disturbances detected by ACE usually reach Earth
about an hour later. This disturbance was the leading edge of a gigantic
bubble of gas ejected from the Sun on June 6. It's been expanding toward
our planet for the past day and a half. For more information and updates
please visit http://www.spaceweather.com
SpaceWeather.com
Topic 34 of 99 [Geo]: Space Science News
Response 95 of 777: Marcia (MarciaH) * Thu, Jun 8, 2000 (18:25) * 14 lines
Date: Thu, 8 Jun 2000 16:40:9
Subject: Solar Storms A'brewing
Thursday's Classroom for June 8, 2000
This morning an interplanetary shock wave hit Earth's magnetosphere
triggering aurora over some parts of our planet. In this episode of
Thursday's Classroom, students can learn more about space storms and aurora
by calculating the speed of a coronal mass ejection, playing Sunspot
Twister, or producing their own Space Weather report. For more information
and activities, please visit http://www.thursdaysclassroom.com
Thursday's Classroom
Topic 34 of 99 [Geo]: Space Science News
Response 96 of 777: Marcia (MarciaH) * Fri, Jun 9, 2000 (22:18) * 15 lines
A Little Physics and A Lot of String
NASA Science News for June 9, 2000
One day space tethers may be used for boosting orbits, powering
satellites, and even sending payloads to the Moon or Mars -- all
without the expense of conventional propellants. Scientists
discussed this innovative technology at the recent Advanced
Space Propulsion Workshop held in Pasadena, CA.
FULL STORY at
http://spacescience.com/headlines/y2000/ast09jun_1.htm?list
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Topic 34 of 99 [Geo]: Space Science News
Response 97 of 777: What's happenin' in the news? (sprin5) * Sat, Jun 10, 2000 (08:23) * 5 lines
From that article:
"In one variant of a momentum-exchange tether, the faster-moving tether system grabs a slower-moving satellite in a lower orbit using a grapple at the end of a tether line between 20 and 200 kilometers long.
After orbiting around the Earth once together, the rotating tether system tosses the satellite forward into a higher orbit, somewhat like a roller derby skater grabbing a teammate and slinging them forward. The first skater transfers some of their momentum to the second skater, leaving the first skater going slower afterward. Similarly, the tether system gives some of its momentum to the satellite, ending up in a lower orbit."
Topic 34 of 99 [Geo]: Space Science News
Response 98 of 777: Marcia (MarciaH) * Sat, Jun 10, 2000 (14:00) * 9 lines
A friend made this comment in email this morning:
They used to think about a tether attached to the surface of the earth
with the outer end 100's of miles into space. Theoretically the outer end
would have orbiting velocity. Objects could climb up the tether into
orbit. The problem was the strength and weight of such a tether;
probably impossible.
These present suggested uses for tethers may be more practical.
Topic 34 of 99 [Geo]: Space Science News
Response 99 of 777: Marcia (MarciaH) * Sat, Jun 10, 2000 (22:55) * 17 lines
A solar flare, a CME, and a solar wind disturbance -- all in one day!
Space Weather News for June 10, 2000
The prolific flare-producing sunspot group #9026 unleashed another
moderately strong solar flare today. The eruption was accompanied by a
partial halo coronal mass ejection (CME) that might be Earth-directed. If
so, material from the CME would arrive in the vicinity of our planet on
June 12 or 13. A SOHO coronagraph animation of the event shows a beautiful
billowing CME peppered by speckles and meteor-like streaks resulting from
energetic particles hitting the spacecraft's camera.
Earlier in the day, as predicted, a solar wind disturbance from a CME on
June 7 struck Earth's magnetosphere. Active geomagnetic conditions were
observed for about nine hours, but have since subsided.
For more information and pictures, please visit
http://www.spaceweather.com
Topic 34 of 99 [Geo]: Space Science News
Response 100 of 777: Marcia (MarciaH) * Mon, Jun 12, 2000 (14:09) * 10 lines
Date: Mon, 12 Jun 2000 08:30:40 -0700
SFI=187 | A=24 | K=3 up from 2 at 1500 on 12 June.
SAF: moderate, GMF: at quiet to minor storm levels
Aurora Level: 4
Solar Wind: 469.6 km/s at 1.3 protons/cc
More: http://hfradio.org/propagation.html
Topic 34 of 99 [Geo]: Space Science News
Response 101 of 777: Marcia (MarciaH) * Tue, Jun 13, 2000 (01:29) * 14 lines
From the Drawing Board to the Stars
NASA Science News for June 13, 2000
In this scientific human interest story, Dr. Jim Burch, principle
investigator for NASA's IMAGE space weather satellite, describes
what it's like to visualize a modern space mission and then, years
later, to make it happen. Burch shares his experiences as a
competitor for mission funding, as a coordinator of far-flung
personnel and institutions, and as an onlooker during the anxious
moments of launch.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast13jun_1.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 102 of 777: Marcia (MarciaH) * Tue, Jun 13, 2000 (17:06) * 14 lines
Solar wind disturbance passes Earth
Space Weather News for June 13, 2000
The shock front from a beautiful full-halo coronal mass ejection that left
the Sun on June 10 apparently passed by Earth at approximately 2200 UT on
June 12. Although the solar wind velocity increased substantially,
geomagnetic disturbances so far have been mild. The chances for widespread
aurora tonight are low.
For more information please see http://www.spaceweather.com
SpaceWeather.com
---
Topic 34 of 99 [Geo]: Space Science News
Response 103 of 777: Marcia (MarciaH) * Wed, Jun 14, 2000 (02:27) * 15 lines
Solstice Moon
NASA Science News for June 14, 2000
This week's full Moon, which takes place just four days before the June
solstice, will appear unusually big and colorful to observers in the
northern hemisphere.
FULL STORY at
http://spacescience.com/headlines/y2000/ast14jun_1.htm?list
__
You are subscribed to Science.NASA.gov NASA Science News mailing list
with the address marci@ALOHA.NET.
Topic 34 of 99 [Geo]: Space Science News
Response 104 of 777: What's happenin' in the news? (sprin5) * Wed, Jun 14, 2000 (09:14) * 1 lines
Any solstice celebrations planned, anyone?
Topic 34 of 99 [Geo]: Space Science News
Response 105 of 777: Marcia (MarciaH) * Thu, Jun 15, 2000 (16:21) * 12 lines
Ocean Tides Lost and Found
NASA Science News for June 15, 2000
Lunar tides impart tremendous energy to Earth's oceans, but
where does it all go? Scientists studying data from the orbiting
TOPEX/Poseidon satellite believe they now have an answer.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast15jun_2.htm?list
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Topic 34 of 99 [Geo]: Space Science News
Response 106 of 777: Marcia (MarciaH) * Thu, Jun 15, 2000 (18:27) * 19 lines
Thursday's Classroom for June 15, 2000
This month's full Moon will appear bigger and more colorful than usual
because it occurs so close to the northern summer solstice. Students can
learn more about the Moon and the famous illusion that makes the Moon
appear larger when it's near the horizon by making an edible Moon Munchie
spyglass, calculating Loony Basketball Math, and reciting "Full Moon
Wherewolf" homonym poetry. For more information, please visit
http://www.thursdaysclassroom.com
Thursday's Classroom
Note: These lessons are relevant even after this week's full Moon. For
several days following June 16, the Moon will appear nearly full and, of
course, there's another full Moon every month. Each one hovers above the
horizon for a while as it rises, triggering the 'Moon Illusion.' The
illusion simply lasts longer for northern observers near the time of the
summer solstice.
Topic 34 of 99 [Geo]: Space Science News
Response 107 of 777: Marcia (MarciaH) * Fri, Jun 16, 2000 (01:30) * 11 lines
The Incredible Ions of Space Transportation
NASA Science News for June 16, 2000
After nearly 40 years of development and the successful flight of
Deep Space 1 in 1998-1999, ion propulsion has now entered the
mainstream of propulsion options available for deep-space
missions. FULL STORY at
http://spacescience.com/headlines/y2000/ast15jun_1.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 108 of 777: Marcia (MarciaH) * Mon, Jun 19, 2000 (17:53) * 15 lines
From: NASA Science News
Precedence: Bulk
Space Lasers Take Aim at the Wind
NASA Science News for June 19, 2000
NASA scientists are studying a type of radar that uses laser light instead
of microwaves to provide snapshots of the winds that travel the globe.
Knowing the wind's speed and direction over large areas could help
meteorologists answer the riddle of tomorrow's weather and benefit many
areas of the world's economy.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast19jun_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 109 of 777: Marcia (MarciaH) * Tue, Jun 20, 2000 (01:30) * 13 lines
Scientists Discover Sugar in an Interstellar Cloud
NASA Science News for June 20, 2000
Scientists have discovered a molecular cousin to table
sugar in a giant interstellar cloud known as Sagittarius B2.
The discovery of this sugar molecule in a cloud where new
stars are forming means it is increasingly likely that chemical
precursors to life are formed in such clouds long before planets
develop around stars.
FULL STORY at
http://spacescience.com/headlines/y2000/ast20jun_1.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 110 of 777: Marcia (MarciaH) * Wed, Jun 21, 2000 (01:25) * 16 lines
Asteroids Have Seasons, Too
NASA Science News for June 21, 2000
Earth isn't the only world where seasons are changing this week.
Millions of miles from our planet, southern winter is giving way
to spring on asteroid 433 Eros. As the Sun rises over the south
pole of Eros, instruments on NASA's NEAR-Shoemaker spacecraft
will catch a glimpse of never-before-seen terrain.
FULL STORY at
http://spacescience.com/headlines/y2000/ast21jun_1.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 111 of 777: Marcia (MarciaH) * Thu, Jun 22, 2000 (00:41) * 11 lines
Coming Soon: Better Solar Storm Warnings
NASA Science News for June 22, 2000
In the past, predicting the onset of a geomagnetic storm was difficult. Forecasters couldn't say with much precision how long it would take for a solar coronal mass ejection to reach Earth. Now scientists have created a model that reliably forecasts the arrival of these billion-ton gas clouds.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast22jun_1m.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 112 of 777: (sprin5) * Thu, Jun 22, 2000 (09:40) * 1 lines
I heard on the news on the radio on the way to work that they've found water on Mars.
Topic 34 of 99 [Geo]: Space Science News
Response 113 of 777: Marcia (MarciaH) * Thu, Jun 22, 2000 (13:09) * 18 lines
Indeed.......here is the NASA press release:
Mars Surprise -- images reveal signs of recent water flow on Mars
NASA Science News for June 22, 2000
In what could turn out to be a landmark discovery in the
history of Mars exploration, scientists using data from
NASA's Mars Global Surveyor spacecraft have observed features
that suggest current sources of liquid water at or near the
surface of the red planet. NASA scientists compare the features
to those left by flash floods on Earth.
FULL STORY at
http://spacescience.com/headlines/y2000/ast22jun_2.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 114 of 777: Marcia (MarciaH) * Mon, Jun 26, 2000 (13:58) * 15 lines
The Ups and Downs of Ozone
NASA Science News for June 26, 2000
Scientists are watching carefully as the ozone layer,
which protects animal and plant life from harmful
solar ultraviolet radiation, begins an uncertain
recovery. Ozone destroying chemicals in the atmosphere
are on the decline, but the timing and nature of the
expected recovery -- and even whether a recovery is
occurring at all -- are controversial topics.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast26jun_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 115 of 777: Marcia (MarciaH) * Tue, Jun 27, 2000 (16:00) * 14 lines
Giant Planet Power Breakfast
NASA Science News for June 27, 2000
Jupiter and Saturn have spent much of the last few months hidden
in the bright glare of the Sun. Now they are rising before dawn
and are visible again with the naked eye. This week the slender
crescent moon will join the pair for a dazzling show in the sky
before sunrise.
FULL STORY at
http://spacescience.com/headlines/y2000/ast27jun_1.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 116 of 777: Marcia (MarciaH) * Wed, Jun 28, 2000 (18:20) * 14 lines
Setting Sail for the Stars
NASA Science News for June 28, 2000
Scientists met last month to discuss the latest
developments in solar sail technology. A new
mission, the Interstellar Probe, could carry a
spacecraft beyond the edge of the solar system by
2018.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast28jun_1m.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 117 of 777: Marcia (MarciaH) * Thu, Jun 29, 2000 (17:18) * 12 lines
Making a Splash on Mars
NASA Science News for June 29, 2000
On a planet that's colder than Antarctica and
where water boils at ten degrees above freezing,
how could liquid water ever exist? Scientists say
a dash of salt might help.
FULL STORY at
http://spacescience.com/headlines/y2000/ast29jun_1m.htm?lis
Topic 34 of 99 [Geo]: Space Science News
Response 118 of 777: Marcia (MarciaH) * Fri, Jun 30, 2000 (15:15) * 16 lines
Earth reaches its greatest distance from the Sun on the 4th of July
NASA Science News for June 30, 2000
The Earth will reach its greatest distance from
the Sun this year on the 4th of July, but don't
expect a break from the heat of northern summer.
This article discusses Earth's slightly
elliptical orbit and the effects (some
negligible, some substantial) that lopsided
orbits have on planets around the solar system.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast30jun_1m.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 119 of 777: Marcia (MarciaH) * Mon, Jul 3, 2000 (23:42) * 13 lines
Mars passes by the Sun
Space Weather News for July 3, 2000
Solar activity was low over the weekend and is expected to remain so for
the next 24 to 48 hours. Nevertheless, on July 1st and 2nd coronagraphs on
the Solar and Heliospheric Observatory captured a beautiful sequence of
images showing Mars as it passed less than one degree from the Sun. The
animation includes several coronal mass ejections associated with small
solar flares. For more information visit http://www.spaceweather.com
Topic 34 of 99 [Geo]: Space Science News
Response 120 of 777: Marcia (MarciaH) * Thu, Jul 6, 2000 (13:29) * 10 lines
Here Comes Comet Linear
NASA Science News for July 05, 2000
Comet 1999 LINEAR S4, which can already be seen
through binoculars, is expected to become a faint
naked-eye object similar in appearance to the
Andromeda Nebula as it glides by the Big Dipper
this month. Maximum brightness is expected on
July 23, 2000.
Topic 34 of 99 [Geo]: Space Science News
Response 121 of 777: Marcia (MarciaH) * Fri, Jul 7, 2000 (01:24) * 15 lines
Some Comets Like it Hot
NASA Science News for July 07, 2000
Amateur astronomers are discovering pieces of a
giant comet that broke apart in antiquity as the
fragments zoom perilously close to the Sun. You
can join the hunt, too. All you need is a
computer and an internet connection to view
realtime data from the orbiting ESA/NASA Solar
and Heliospheric Observatory.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast07jul_1.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 122 of 777: Marcia (MarciaH) * Sat, Jul 8, 2000 (15:01) * 15 lines
Space Weather News for July 8, 2000
Coronagraphs on board the orbiting ESA/NASA Solar and Heliospheric
Observatory (SOHO) recorded a full halo coronal mass ejection (CME) on July
7th. Forecasters estimate that material from the CME will arrive in the
neighborhood of Earth on July 11th.
While the CME was ongoing, SOHO's wide field coronagraph also captured the
planet Mercury racing by the Sun twice as fast as the drifting field of
background stars. Mercury joined two other planets, Mars and Venus, in the
coronagraph's field of view.
For animations and more information, please visit
http://www.spaceweather.com
Topic 34 of 99 [Geo]: Space Science News
Response 123 of 777: Marcia (MarciaH) * Mon, Jul 10, 2000 (13:25) * 11 lines
A solar wind disturbance arrives at Earth
Space Weather News for July 10, 2000
The shock front from a July 7th coronal mass ejection has apparently
reached our planet about a day earlier than expected. The disturbance,
recorded by NASA's ACE spacecraft at 0600 UT on July 10, was not
extraordinarily vigorous. Nevertheless, skywatchers are advised to be on
the alert for aurora. For more information please visit
http://www.spaceweather.com
Topic 34 of 99 [Geo]: Space Science News
Response 124 of 777: Marcia (MarciaH) * Mon, Jul 10, 2000 (17:02) * 13 lines
Cosmic Light Pollution
NASA Science News for July 10, 2000
A series of unmanned balloon flights will measure
the subtle ultraviolet glow of the night sky and
help unravel one of the most perplexing mysteries
of astrophysics -- the origin of ultra
high-energy cosmic rays.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast10jul_1.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 125 of 777: Marcia (MarciaH) * Tue, Jul 11, 2000 (18:13) * 11 lines
The propagation continues upward:
SFI=225 up from 215 | A=28 up from 18 | K=3 down from 4 at 2100 on 11 July.
SAF: moderate to high, GMF: at active to minor storm levels
Aurora Level: 5
Solar Wind: 543.3 km/s at 5.7 protons/cc
More: http://hfradio.org/propagation.html
Topic 34 of 99 [Geo]: Space Science News
Response 126 of 777: Marcia (MarciaH) * Tue, Jul 11, 2000 (18:20) * 18 lines
Date: Tue, 11 Jul 2000 15:26:37 -0500
From: NASA Science News
Comet Borrelly or Bust
NASA Science News for July 11, 2000
NASA's experimental Deep Space 1 probe --left for
dead after a guidance system failure in late 1999 --
was revived last month in a thrilling cross-
the-solar-system rescue conducted by JPL
engineers. The craft set sail again on June 28,
2000, just in time for a planned rendezvous with
periodic comet Borrelly in 2001.
FULL STORY at
http://spacescience.com/headlines/y2000/ast11jul_1.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 127 of 777: Marcia (MarciaH) * Wed, Jul 12, 2000 (12:58) * 13 lines
Brown Dwarf Solar Flare
NASA Science News for July 12, 2000
The Chandra X-ray Observatory has detected the
first-ever flare from what's known as a brown
dwarf, or failed star. Scientists were surprised
at the outburst, which unleashed an amount of
energy comparable to a small solar flare.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast12jul_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 128 of 777: Marcia (MarciaH) * Thu, Jul 13, 2000 (18:36) * 17 lines
Aurora Warning
Space Weather News for July 13, 2000
Stargazers in both hemispheres are advised to watch for auroras tonight as
the result of a strong solar wind disturbance that struck Earth's
magnetosphere at approximately 0940 UT (5:40 a.m. EDT) on July 13th. The
strong geomagnetic storm that started this morning may now be subsiding,
but another interplanetary shock wave is expected to arrive on July 14th
and extend the current period of geomagnetic unrest. Auroral displays at
middle latitudes are possible (but by no means guaranteed) around local
midnight on July 13th through 15th. For more information please visit
http://www.spaceweather.com
Photographers who capture pictures of Northern or Southern Lights during
the next few days are invited to send their images as attachments to
webmaster@spaceweather.com for display on SpaceWeather.com.
Topic 34 of 99 [Geo]: Space Science News
Response 129 of 777: Marcia (MarciaH) * Thu, Jul 13, 2000 (19:06) * 8 lines
SFI=232 up from 230 | A=31 up from 12 | K=2 down from 5 at 2100 on 13 July.
SAF: moderate to high, GMF: at unsettled to minor storm levels
Aurora Level: 7
Solar Wind: 618.4 km/s at 3.6 protons/cc
More: http://hfradio.org/propagation.html
Topic 34 of 99 [Geo]: Space Science News
Response 130 of 777: Marcia (MarciaH) * Fri, Jul 14, 2000 (02:18) * 21 lines
Pacific Lunar Eclipse
NASA Science News for July 14, 2000
This weekend the Moon, the Sun and the Earth will
align for the longest total lunar eclipse in 140
years. The best places to see the event are in
and around the Pacific Ocean, including Hawaii
and Australia. Observers along the west coast of
North America will be able to see a partial
eclipse just before the Moon sets on Sunday
morning. During totality skywatchers may also be
able to spot the asteroid 4 Vesta, which
coincidentally makes a rare appearance as a
naked-eye object during the days around the
eclipse.
FULL STORY at
http://spacescience.com/headlines/y2000/ast14jul_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 131 of 777: Marcia (MarciaH) * Fri, Jul 14, 2000 (15:56) * 11 lines
Powerful Solar Flare Triggers Radiation Storm
Space Weather News for July 14, 2000
This morning an X5-class solar flare, one of the most powerful flares of
the current solar cycle, triggered a proton storm in the neighborhood of
our planet. Just after the eruption, coronagraphs on board the ESA/NASA
Solar and Heliospheric Observatory recorded a full halo coronal mass
ejection heading toward Earth at greater than 1000 km/s. Please visit
http://www.spaceweather.com for details and updates on this developing
story.
Topic 34 of 99 [Geo]: Space Science News
Response 132 of 777: Marcia (MarciaH) * Fri, Jul 14, 2000 (20:20) * 20 lines
The following Alerts and Warnings are in effect:
sr@hfradio.org
The following Alerts and Warnings are in effect:
Magnetic A-Index greater than 50 Watch for 15 Jul 2000 UT
Comment: K-indices of greater than 6 are possible beginning at 1800 UT on 15 July
Magnetic A-Index greater than 50 Watch for 16 Jul 2000 UT
Comment: K-indices of greater than 6 are possible beginning at 1800 UT on 15 July
Magnetic A-Index greater than 50 Watch for 17 Jul 2000 UT
Comment: K-indices of greater than 6 are possible beginning at 1800 UT on 15 July
Magnetic K-Index of 6 Observed 14 Jul 2000 from 15:00 to 18:00 UT
Comment: None
More: http://hfradio.org/propagation.html
Topic 34 of 99 [Geo]: Space Science News
Response 133 of 777: Marcia (MarciaH) * Fri, Jul 14, 2000 (20:26) * 22 lines
A Solar Radiation Storm
NASA Science News for July 14, 2000
A powerful solar flare on July 14th triggered an
intense radiation storm in the vicinity of Earth.
The eruption was followed by a fast-moving
coronal mass ejection that is expected to strike
Earth's magnetosphere as early as Saturday. The
impact could trigger Northern and Southern Lights
bright enough to be seen in spite of this
weekend's brilliant full Moon. Such a display is
by no means guaranteed, but it is possible.
Observers across the Pacific could be in for a
very rare treat: the sight of shimmering colorful
aurora during the total lunar eclipse of July 16,
2000.
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast14jul_2m.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 134 of 777: Marcia (MarciaH) * Sat, Jul 15, 2000 (14:57) * 49 lines
Solar Wind data is incorrect due to proton
overload of the sensors on the spacecraft.
True solar wind speed is approx. 775 to 800 km/s
with a density of approx. 25 to 30 protons/cm3
ADVISORY: The shock wave from Friday's fast-moving
coronal mass ejection could arrive as early as
1900 UT.
ALERT(S): Magnetic A-Index Greater than 50 Watch for 15 Jul 2000 UT
Comment: K-indices of Greater than 6 are possible beginning at 1800 UT on 15 July
Magnetic A-Index Greater than 50 Watch for 16 Jul 2000 UT
Comment: K-indices of Greater than 6 are possible beginning at 1800 UT on 15 July
Magnetic A-Index Greater than 50 Watch for 17 Jul 2000 UT
Comment: K-indices of Greater than 6 are possible beginning at 1800 UT on 15 July
Magnetic K-Index of 6 Observed 14 Jul 2000 from 15:00 to 18:00 UT
Comment: None
Magnetic A-Index Greater than 30 Warning valid from 15 Jul 2000 0000 to 0600 UT
Comment: None
The following Warning was EXTENDED at 0000 UT on 15 Jul 2000 and is now
valid through 0000 UT on 17 Jul 2000
Magnetic K-Index Greater than 6 Warning valid from 13 Jul 2000 1438 to 15 Jul
2000 0000 UT
Comment: None
The following Alert was CONTINUED at 0100 UT on 15 Jul 2000
Protons Event Greater than 10 MeV @ Greater than 10pfu BEG 14 Jul 2000 1050 UT
Comment: The current proton flux is approximately 8500 pfu's.
The following Alert was CONTINUED at 0100 UT on 15 Jul 2000
Proton event Greater than 100 MeV @ Greater than 1pfu BEG 14 Jul 2000 1040 UT
Comment: The current proton flux level is approximately 100 pfu's . A
maximum proton flux of approximately 400 pfu's was reached at 1620 UT on 14 July.
Magnetic A-Index Greater than 30 Observed 15 Jul 2000 0600 UT
Comment: None
Type II Radio Emission 15 Jul 2000 1433 UT
Comment: Estimated shock velocity = 788 km/s
More: http://hfradio.org/propagation.html
Topic 34 of 99 [Geo]: Space Science News
Response 135 of 777: Marcia (MarciaH) * Sat, Jul 15, 2000 (20:16) * 60 lines
An Extreme Geomagnetic Storm is Underway
Space Weather News for July 15, 2000
A powerful shock wave from the fast-moving July 14th coronal mass ejection
has arrived in the neighborhood of Earth. An extreme geomagnetic storm
was underway at 1900 UT (3:00 p.m. EDT) on July 15th. If conditions
persist as they are now, aurora could be visible at middle (and possibly
even equatorial) latitudes. The best time to view aurora is usually near
local midnight. In this case, sky watchers are advised to look for aurora
as soon as night falls. For more information and updates please visit
http://www.spaceweather.com
Readers are invited to send pictures of tonight's aurora and the July 16,
2000, total lunar eclipse (visible across the Pacific Ocean) as an email
attachment to phillips@spacescience.com for possible posting on
spaceweather.com and/or spacescience.com.
For more information about the lunar eclipse:
Pacific Lunar Eclipse
http://spacescience.com/headlines/y2000/ast14jul_1m.htm
**************************
SEVERE GEOMAGNETIC STORM:
Kp Index is at 9. A Index is 118.
We are in a catagory G5 Storm. NOAA's Space Weather
scale indicates the following effects:
Power systems: grid systems can collapse and
transformers experience damage.
Spacecraft operations: extensive surface charging,
problems with orientation, uplink/downlink, and
tracking satellites.
Other systems: pipeline currents reach hundreds of
amps, HF (high frequency) radio propagation
impossible in many areas for one to two days,
satellite navigation degraded for days,
low-frequency radio navigation out for hours, and
the aurora seen as low as the equator.
The Proton Monitor on the Solar and Heliospheric
Observatory is registering solar wind speeds in
excess of 900 km/s
The wave of solar particles - known as a solar
proton event - is already four times more intense
than any other event detected since the launches
of SOHO in 1995 and ACE in 1997. At mid-afternoon
(UT) on July 14th, the storm of particles from
the Sun was still intensifying.
More: http://hfradio.org/propagation.html
Topic 34 of 99 [Geo]: Space Science News
Response 136 of 777: Marcia (MarciaH) * Tue, Jul 18, 2000 (02:00) * 12 lines
X-ray Star Stuff
NASA Science News for July 18, 2000
Astronomers using the Chandra X-ray Observatory
are seeing how supernovae spray the essential
elements of rocky planets and life into
interstellar space.
FULL STORY at
http://spacescience.com/headlines/y2000/ast18jul_1m.htm?list
Topic 34 of 99 [Geo]: Space Science News
Response 137 of 777: Marcia (MarciaH) * Thu, Jul 20, 2000 (02:01) * 16 lines
Unveiling the Infrared Sky
NASA Science News for July 20, 2000
Your home computer can become a portal to a
wonderland of stars, thanks to a massive release
of images from an infrared sky survey sponsored
by NASA and the National Science Foundation. The
current release is based on a volume of data
several hundred times larger than that contained
in the human genome!
FULL STORY at
http://science.nasa.gov/headlines/y2000/ast20jul_1.htm?list
__
Topic 34 of 99 [Geo]: Space Science News
Response 138 of 777: Marcia (MarciaH) * Fri, Jul 21, 2000 (13:02) * 33 lines
Coronal Mass Ejection
21 July 2000
There is high probability that the CME (Coronal Mass
Ejection) from the major M-class solar flare of
19 July 2000 will arrive today. It is expected to
hit the Earth almost head-on. It is not expected
to be as intense as this last weekend's event.
Auroral activity is expected to increase to storm
levels on 21 July 2000. There is a good chance for
observations of auroral