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Gravity Assist: Earth with Tom Wagner


In this episode Tom Wagner of NASA’s Earth Science Division discusses sea ice, volcanoes, what it’s like to live and work in Antarctica, and how studying planets like Venus and Mars helps provide clues about the future of our home planet. News Article Type: Homepage ArticlesPublished: Wednesday, December 6, 2017 - 12:49

Warm and Wet Ancient Mars? Maybe Not

Space.com -

A new study suggests that Mars' ancient clays may have formed via the interaction of rock with a steamy atmosphere, not water on or just beneath the planet's surface.

Voyager 1 Fires Up Thrusters After 37 Years


If you tried to start a car that's been sitting in a garage for decades, you might not expect the engine to respond. But a set of thrusters aboard the Voyager 1 spacecraft successfully fired up Wednesday after 37 years without use.

News Article Type: Homepage ArticlesPublished: Tuesday, December 5, 2017 - 12:57


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