Mercury has been shrinking since it formed in our solar system's early days. New evidence, though, suggests it used to be ...
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Wavy alien dune fields stretch across Mars | Space photo of the day for Sept. 11, 2026
A dune field on Mars, as seen by the Mars Reconnaissance Orbiter.
NASA’s Curiosity rover has spotted a set of unusual holes on Mars that appear different from the impact craters typically ...
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