Tag Archives: climate change

Dry ice glaciers?

Posted on October 12, 2011 by rburnham

Scientists examining rocky remnants in Mars’ northern polar region believe they have found evidence for a type of glacier unknown on Earth – one where the ice is made of frozen carbon dioxide rather than water. Mikhail Kreslavsky (University of … Continue reading →

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Making fans all over

Posted on September 15, 2011 by rburnham

Water and sediment run downhill, on Earth and Mars alike. And when they do, they build broad alluvial (outwash) fans at the foot of slopes. But how fast do these fans accumulate? On Mars, at least, it looks like they … Continue reading →

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Meteorites: Keys to bygone Mars climates

Posted on July 15, 2011 by rburnham

The sky falls on Mars, too, just as it does sometimes on Earth. In its long crosscountry drive over the pool table expanse of Meridiani Planum, Mars Exploration Rover Opportunity has encountered more than a dozen meteorites, all of them … Continue reading →

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Peeking into a stacked deck

Posted on June 7, 2011 by rburnham

No one is planning to send a Mars rover into the high latitudes (north or south) anytime soon, but if a paper in Icarus (June 2011) by Seth J. Kadish and James W. Head (both Brown University) is correct, scientists … Continue reading →

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