Tag Archives: Mars Express

Water-carved channels on crater debris

Posted on February 10, 2012 by rburnham

Medium-size craters less than 3 billion years old often show water-carved channels in their debris aprons, according to a new study of mid-latitude craters in Arabia Terra. Previous studies had reported that such features on ejecta aprons were rare. Nicolas … Continue reading →

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MARSIS detects “Oceanus Borealis” sediments

Posted on January 25, 2012 by rburnham

The ground-penetrating radar instrument MARSIS on the Mars Express orbiter has measured the electrical properties of the north and south polar regions. The results, reported in Geophysical Research Letters by Jérémie Mouginot (University of California, Irvine) and colleagues, strongly support … Continue reading →

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Devilry in the air

Posted on September 2, 2011 by rburnham

With all the spacecraft orbiting Mars, it’s slightly surprising that there aren’t more observations of dust devils shared by two or more instruments. Writing in the September 2011 issue of Icarus, a team of scientists led by Dennis Reiss (Westfälische … Continue reading →

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Hadriaca Patera’s heavy footprint

Posted on August 18, 2011 by rburnham

On the northeast edge of the giant Hellas impact basin, the thick stack of lava in the volcano Hadriaca Patera weighed so much it depressed the Martian surface immediately around it. This bent and cracked the crust on the volcano’s … Continue reading →

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