Scientists Zero In On Cause Of Mysterious Mars Gully Features

Researchers associated with NASA’s Mars Reconnaissance Orbiter (MRO) mission propose the seasonal thawing of carbon dioxide frost as the mechanism for pervasive gully features on the Red Planet. The features are not associated with recurring slope linae (RSL), the darkened streaks that come and go...
Mark Carreau

Mark is based in Houston, where he has written on aerospace for more than 25 years. While at the Houston Chronicle, he was recognized by the Rotary National Award for Space Achievement Foundation in 2006 for his professional contributions to the public understanding of America's space program through news reporting.

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