Enigmatic depressions on the surface have puzzled scientists since the 1970s NASA’s MESSENGER spacecraft discovered strange hollows on the surface of Mercury. Images taken from orbit revealed thousands of mysterious depressions, pitted and uneven, in areas all across the planet, up to a half-mile (800 meters) across and 120 feet (37 meters) deep. This mosaic […]
Category:
The Solar System
Posted on
October 17, 2023
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