SETI bioastro: Fw: Science News from NASA HQ

• Previous message: LARRY KLAES: "SETI bioastro: The ice of Jupiter's moon - Io?"

----- Original Message -----
From: Alan Smale<mailto:Alan.P.Smale_at_nasa.gov>
To: oss-update_at_yahoogroups.com<mailto:oss-update_at_yahoogroups.com>
Sent: Friday, November 05, 2004 10:57 AM
Subject: Science News from NASA HQ

Here's a grab-bag of cosmic wonders to chase away those November blues...

On Oct 26th, NASA's Cassini spacecraft flew within a thousand miles
of the surface of Saturn's moon Titan. Stories and images at --
http://www.nasa.gov/cassini>
http://saturn.jpl.nasa.gov/>
http://ciclops.lpl.arizona.edu/>
http://www.astrobio.net/news/article1266.html>
http://www.astrobio.net/news/article1278.html>

NASA's Big Three Great Observatories - HST, Chandra, and Spitzer -
have collaborated on the unraveling of a 400-yr-old mystery. Check
out the multiple images of Kepler's Supernova Remnant
http://www.nasa.gov/vision/universe/starsgalaxies/kepler.html>
http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/34/>
http://chandra.harvard.edu/press/04_releases/press_100604.html>

Spitzer: "Astronomers Discover Planet Building is Big Mess." Y'know,
it's hard to add anything to a headline like that....
http://www.spitzer.caltech.edu/Media/releases/ssc2004-17/index.shtml>
   Further interpretation and interesting images at
http://www.astrobio.net/news/article1251.html>

If you're still feeling Halloweeny, check out Spitzer's Galactic
Ghoul (it's the animation that's really spooky....)
http://www.spitzer.caltech.edu/Media/releases/ssc2004-18/index.shtml>
   and Chandra's jack-o-lantern view of galaxy M87
http://chandra.harvard.edu/photo/2004/m87b/>

A 'triple eclipse': moons Io, Callisto, and Ganymede cast their
shadows on the colorful disk of Jupiter --
http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/30/>

As the Earth rotates, it drags space and time around with it. No,
really; it's the Lense-Thirring Effect, predicted by Einstein's
Theory of Relativity, known more colloquially as 'frame-dragging'.
The effect has just been directly measured by two laser geodynamics
satellites
http://www.nasa.gov/vision/earth/lookingatearth/earth_drag.html>
   -- and will eventually be measured to much greater accuracy by the
Gravity Probe-B mission, which is currently orbiting the earth, two
months into its science-taking phase:
http://einstein.stanford.edu/>

Our heliosphere is leaking, letting in a stream of neutral helium
atoms from the direction of Sagitarrius. Man, I hate it when that
happens.
http://science.nasa.gov/headlines/y2004/27sep_shieldsup.htm?list1032190>

No life in the Galactic Center, say astronomers using data from a
telescope at the South Pole: frequent supernovae probably sterilize
the area quite efficiently. Darn.
http://www.cfa.harvard.edu/press/pr0431.html>

News from Planet Earth:

Antarctic Larsen B ice shelf breaks away; flow of glaciers
subsequently increases:
http://www.gsfc.nasa.gov/topstory/2004/0913larsen.html>

How LIDAR (Light Detection and Ranging) can help us study Mount St. Helens:
http://www.nasa.gov/vision/earth/lookingatearth/mshelenslidar.html>

And a few final 'quick picks':

Two X-ray flashes and a powerful gamma-ray burst detected by the
NASA's HETE-2 satellite:
http://www.gsfc.nasa.gov/topstory/2004/0930grb.html>

A cosmic corkscrew image from the VLA of the microquasar SS433:
http://www.nrao.edu/pr/2004/ss433corkscrew/>

HST looks back towards what may be the earliest star-forming galaxies:
http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/28/>

Coming soon: Swift, NASA's gamma-ray burst chasing satellite,
scheduled for launch later this month! Swift will observe hundreds of
gamma-ray bursts and their afterglows at gamma, X-ray, and optical/UV
wavelengths to obtain a deeper understanding of what causes these
immense cosmic explosions.
http://www.nasa.gov/mission_pages/swift/main/index.html>
http://swift.gsfc.nasa.gov/docs/swift/news/2004/04-360.html>

Laters....!

- Alan @ NASA HQ

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• Previous message: LARRY KLAES: "SETI bioastro: The ice of Jupiter's moon - Io?"

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