Roughly 3.5 billion years ago, Gale Crater on Mars held a lake. The sediments that settled at its bottom have been locked in stone ever since, baked by radiation and scoured by thin, cold wind. This ...
The search for life on Mars dates back about five decades, and a Sept. 10 announcement marks perhaps the most dramatic advancement yet. The news: NASA's Perseverance rover had found potential signs of ...
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