MARSIS probes Medusae Fossae Formation |
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MARSIS probes Medusae Fossae Formation |
Nov 1 2007, 09:47 PM
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![]() Member ![]() ![]() ![]() Group: Members Posts: 213 Joined: 21-January 07 From: Wigan, England Member No.: 1638 |
MARSIS finds the Medusae Fossae Formation to be massive deposits more than 2.5 km thick in places.
Ash, dust, or ice deposits? Dielectric constant measurements hint at ice... http://www.jpl.nasa.gov/news/news.cfm?release=2007-126 -------------------- "I got a call from NASA Headquarters wanting a color picture of Venus. I said, “What color would you like it?” - Laurance R. Doyle, former JPL image processing guy
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Nov 2 2007, 08:49 AM
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#2
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1146 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
MARSIS finds the Medusae Fossae Formation to be massive deposits more than 2.5 km thick in places. Ash, dust, or ice deposits? Dielectric constant measurements hint at ice... http://www.jpl.nasa.gov/news/news.cfm?release=2007-126 The preprint of the Science paper "Radar Sounding of the Medusae Fossae Formation Mars: Equatorial Ice or Dry, Low-Density Deposits?" is available http://www.sciencemag.org/cgi/content/abstract/1148112 -------------------- I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.
James Van Allen |
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Apr 19 2008, 11:29 PM
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1620 Joined: 20-November 04 From: Iowa Member No.: 110 |
Mars radar opens up a planet’s third dimension
http://www.esa.int/SPECIALS/Mars_Express/SEMIF74XQEF_0.html Interesting animation in the latest press release. |
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Apr 20 2008, 02:16 PM
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#4
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![]() Member ![]() ![]() ![]() Group: Members Posts: 231 Joined: 5-February 06 Member No.: 675 |
Neat images, but a minor quibble. The image comparing the MARSIS and SHARAD images of the same region show only a single nadir track. It apparently is for the MarsExpress MARSIS image; the MRO SHARAD image gives a sufficiently different surface contour that it must have had a different nadir track.
Nonetheless, great insights into the planet's glacial geology. Steve M Edited to correct text and image |
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