Scientists confirm the existence of liquid water on Mars, altering our understanding of the Red Planet. Evidence of wave ...
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The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...
The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, ...
Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.
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