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Mars Briefing
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About this work
Philip Christensen, a geophysicist at Arizona State University, speaks during a briefing, Thursday, Aug. 4, 2011, at NASA Headquarters in Washington. Observations from NASA's Mars Reconnaissance Orbiter (MRO) have revealed possible flowing water during the warmest months on Mars. Dark, finger-like features appear and extend down some Martian slopes during late spring through summer, fade in winter, and return during the next spring.
NASA Image and Video Library’s own descriptionCredit lineMars Briefing. NASA/HQ, 2011-08-04. Public domain. ID: 201108040004HQ.
