Mars Orbiters Find More Signs Of Past Groundwater

Mark Carreau March 05, 2019
Credit: Mars: NASA
Mars’ northern hemisphere was dotted with at least two dozen large craters that appear to have been filled by groundwater about 3 1/2 billion years ago, and possibly part of a global subsurface aquifer, according to observations gathered by long-serving Mars orbiters. Five of the now-dry craters...
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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