From: LARRY KLAES (ljk4_at_msn.com)
Date: Mon Jul 26 2004 - 04:45:39 PDT
----- Original Message -----
From: Astrobiology Magazine<mailto:astronaut_at_astrobio.net>
To: ljk4_at_msn.com<mailto:ljk4_at_msn.com>
Sent: Monday, July 26, 2004 5:33 AM
Subject: Latest News from the Astrobiology Magazine
Sending a Messenger to Mercury
Visiting an inner planet like Mercury exposes a spacecraft to eleven times the solar intensity compared to Earth. But the early August launch of the MESSENGER probe will look for cometary water-ice in any shaded areas, until it eventually crashes and plants its flag.
Ringscape in Natural Colors
The Saturnian ring system is visible in natural colors using an amateur telescope, but to see it up close as one would riding on the Cassini spacecraft reveals a world of icy-white and what one can only refer to 'earthtones'.
Martian Racetracks
The Mars Express orbiter has captured a stunning image of what on Earth is called yardangs: wind erosion sweeping across a flat plain can carve grooves that look mysteriously like racetracks.
Mars Echoes of Earthtones
As the Spirit rover gets its bearings after a one-mile trek to Columbia Hills, the landscape has transformed from flat plains to exposed vertical faces. To a geologist, finding such layering offers a history lesson in which element dominated its ancient past. Mission scientists continue their detective work to balance the corrosive contributions of wind, water, and impacts.
Monday, July 26
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: Mon Jul 26 2004 - 05:27:36 PDT
http://www.astrobio.net/news/article1099.html
http://www.astrobio.net/news/article1098.html
http://www.astrobio.net/news/article1097.html
http://www.astrobio.net/news/article1096.html
For more astrobiology news, visit http://www.astrobio.net