Mars Oxygen Variations Baffling Scientists

Mars 2020 rover artist's concept
Credit: NASA
HOUSTON—Though quite small, curious seasonal variations in concentrations of oxygen (O2) in the thin atmosphere above the floor of the nearly 100-mi.-wide Gale Crater and ancient lake bed on Mars have scientists baffled and striving to provide an explanation. NASA’s Curiosity rover, which touched...
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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