NASA Earth
@NASAEarth
NASA’s favorite (habitable) planet. 🌎💚 Studying Earth from ground to orbit.
参加 March 2009
86 フォロー中 3.7M ファン
What’s under the Greenland Ice Sheet? 🧊
This new map from @NASA scientists and others shows the land beneath the ice, linking hundreds of valleys that previous maps missed or left fragmented.
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