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Unusual Deposit Found on Mars

By nlhouser on  From amarsodyssey.com
New details have recently been found concerning the Medusae Fossae Formation deposits found on Mars. The European Space Station’s Mars Express orbiter has a radar system that located facts unknown up to now, with the first direct measurement of the depth and electrical properties of these materials giving clues as to their beginnings. NASA’s Jet Propulsion Laboratory, Pasadena CA, manages NASA’s roles in the Mars Express Mission. Using its Mars Advanced Radar for Subsurface and Ionospheric...Read Full Story

Mars Rover Finds “Best Sign Yet” of Microbial Life

By CaseyKazan on  From dailygalaxy.com
NASA says its Mars rover Spirit has discovered "the best evidence yet" of a past habitable environment on the planet's surface. Spirit found a patch of silica-rich soil earlier this year, which scientists believe is a promising sign that Mars hosted at least niche environments that could have potentially harbored life. Spirit has been exploring a plateau called Home Plate, where it discovered silica-rich soil in May. Researchers are now trying to determine what produced the patch of nearly...Read Full Story

High Odds of Oncoming Asteroid Impacting Mars—Part II

By nlhouser on  From amarsodyssey.com
  “If the asteroid hits Mars, we’ll get a great look at the crater within a few days of impact,” said HiRISE principal investigator Alfred McEwen of the University of Arizona’s Lunar and Planetary Laboratory in Tucson. The Martian crater that may result from the new Asteroid 2007 WD5 will be the approximately half-a-mile in diameter, or the size of home base to the rover Opporunity’s home base—Victoria. But regardless what will result, NASA’s MRO probe and its High-Resolution Imaging...Read Full Story

Detailed Look at Terrestrial Clues to Past-Martian Life

By nlhouser on  From amarsodyssey.com
  When the first images from the Mars Orbiter Camera, part of the Mars Global Surveyor Mission, were viewed by scientists they were impressed by the deep gullies cutting into the Martian surface and began to theorize as to the conditions that had formed them. The current and most popular theory is that the gullies were formed by underground water which had surfaced to run down sloping terrain, washing away the soil. With the presence of water being a prerequisite for developing and...Read Full Story

Mars Water And Climate From NASA Orbiter

By spaceman0 on  From explore-the-space.blogspot.com
Mars Reconnaissance Orbiter is examining several features on Mars that address the role of water at different times in Martian history. Features examined with the orbiter's advanced instruments include material deposited in two gullies within the past eight years, polar ice layers formed in the recent geologic past, and signs of water released by large impacts when Mars was older. Last year, discovery of the fresh gully deposits from before-and-after images taken since 1999 by another orbiter...Read Full Story

Ancient Salt Deposits in a Martian Crater

By spaceman0 on  From explore-the-space.blogspot.com
Here's an interesting image released NASA's Mars Reconnaissance Orbiter. It's of an unnamed crater on Mars in the Terra Cimmeria region that could contain ancient deposits of chloride salts. The region is one of the most geologically interesting on Mars. It's riddled with impact craters, crisscrossed by dried up river channels, and sculpted by wind. Water probably acted on the region a long time ago, building up the salt deposits. This region of Mars is of great interest to scientists. Three...Read Full Story

Water evidence in Mars megacanyon

By xenophilius on  From xenophilius.wordpress.com
Cian O’Luanaigh- Melas Chasma, a huge canyon forming part of the 4000 km Valles Marineris rift valley on Mars, plunges 9 km below the surrounding plains in this image, which was taken by the High Resolution Stereo Camera on the European Space Agency’s Mars Express orbiter, making it one of the deepest depressions on the planet. Released today by the German Aerospace Centre, the image also shows evidence that water once flowed and lakes once stood on the Martian surface. White lines are...Read Full Story
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Evidence of flowing water on Mars

Gully formed on the right of this photo sequence

Evidence of flowing water on Mars

Linked from: aljazeera.net

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