From tcoffee at MIT.EDU Thu Dec 7 12:42:41 2006 From: tcoffee at MIT.EDU (Thomas Coffee) Date: Thu, 07 Dec 2006 12:42:41 -0500 Subject: [Mars-discuss] Present-day liquid water on Mars ... Message-ID: <45785291.8030001@mit.edu> ... and some other remarkable recent finds by the MGS imaging team: http://www.jpl.nasa.gov/videos/mgs/mgs20061206/ - Thomas From galandis at MIT.EDU Fri Dec 8 12:32:29 2006 From: galandis at MIT.EDU (Geoffrey A. Landis) Date: Fri, 8 Dec 2006 12:32:29 -0500 Subject: [Mars-discuss] Present-day liquid water on Mars In-Reply-To: References: Message-ID: <715309BC-A213-44D3-AA56-E35FD4172441@mit.edu> > Thomas Coffee > > ... and some other remarkable recent finds by the MGS imaging team: > > http://www.jpl.nasa.gov/videos/mgs/mgs20061206/ For what it's worth, I'd proposed that water flow like this is probablly made possible by the fact that the water is likely to be extremely saline, and hence have a very low freezing temperature: Mars Water: Are There Extant Halobacteria on Mars?" (pdf file), published in Astrobiology Vol. 1., No. 2, pp. 161-164 (2001). http://powerweb.grc.nasa.gov/pvsee/publications/mars/Halobacteria.pdf -- Geoffrey A. Landis http://www.sff.net/people/geoffrey.landis From tcoffee at MIT.EDU Fri Dec 8 16:42:56 2006 From: tcoffee at MIT.EDU (Thomas Coffee) Date: Fri, 08 Dec 2006 16:42:56 -0500 Subject: [Mars-discuss] Present-day liquid water on Mars In-Reply-To: <715309BC-A213-44D3-AA56-E35FD4172441@mit.edu> References: <715309BC-A213-44D3-AA56-E35FD4172441@mit.edu> Message-ID: <4579DC5F.4080305@mit.edu> I've seen several studies demonstrating survival of spores under simulated Martian temperature-pressure environments ... has anyone actually demonstrated growth and/or reproduction of microorganisms under the marginal liquid-water conditions you discuss in the paper? - Thomas >> Thomas Coffee >> >> ... and some other remarkable recent finds by the MGS imaging team: >> >> http://www.jpl.nasa.gov/videos/mgs/mgs20061206/ > > For what it's worth, I'd proposed that water flow like this is > probablly made possible by the fact that the water is likely to be > extremely saline, and hence have a very low freezing temperature: > Mars Water: Are There Extant Halobacteria on Mars?" (pdf file), > published in Astrobiology Vol. 1., No. 2, pp. 161-164 (2001). > http://powerweb.grc.nasa.gov/pvsee/publications/mars/Halobacteria.pdf > From tcoffee at MIT.EDU Sat Dec 16 23:25:37 2006 From: tcoffee at MIT.EDU (Thomas Coffee) Date: Sat, 16 Dec 2006 23:25:37 -0500 Subject: [Mars-discuss] Fwd: Holiday Special from the Mars Gravity team Message-ID: <4584C6C1.7080408@mit.edu> From: "erika wagner" Date: Sat, 16 Dec 2006 17:02:26 -0500 ------------------ Still need an awesome gift this holiday? Send a gift certificate reserving space for your friends and family on the side of America's most ambitious student-designed spacecraft! For a donation as small as $35, we'll send a digital gift certificate allowing them to upload a picture or message of their choice to be displayed on our satellite. Plus your donation will support student satellite development and enable key research for sending humans to Mars. Not too shabby! It's not every day that you can give the gift of space. Send your tax-deductible gift today at http://YourNameIntoSpace.org Happy Holidays! -Erika Wagner PS. The satellite is also a great place to post declarations of love, messages to the world, that logo you want everyone to see, or any other far out idea that comes your way. Reserve your spot on our spacecraft today at http://YourNameIntoSpace.org ! ==================================== Erka B Wagner erika at mit.edu, elb at alumni.vanderbilt.edu m: 617.251.6714 MIT Man-Vehicle Lab Science Director, Mars Gravity Biosatellite http://www.marsgravity.org http://yournameintospace.org