화성의 과거 물 존재 입증 광물(AP 연합)
In this photo released by NASA Monday, Dec. 13, 2004, scientists have identified a water-signature mineral called goethite in bedrock that the NASA's Mars rover Spirit examined in the Columbia Hills, one of the mission's surest indicators yet for a wet history on Spirit's side of Mars. Spirit and …
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04-12-15 20:59