²ÊÃñ±¦µä graduate student Devon Dunmire is searching for the lakes hidden beneath Antarctica's surface—features that, she said, could have huge influences on the future of polar ice sheets.
NASA's atmosphere-sniffing spacecraft will begin a series of maneuvers to tighten its orbit around the Red Planet and prepare for the arrival of the 2020 Mars rover.
Scientists on the Mars Atmosphere and Volatile Evolution (MAVEN) mission have stitched together a selfie of the spacecraft from 21 different ultraviolet images.