If Venus Had An Ancient Moon, It Was Doomed

A false-colour radar image of Venus' surface based on Magellan data. New research says that the planet may have had a moon in the past. But it was eventually pulled toward the planet, where it was consumed. Image Credit: NASA

Earth has a big beautiful Moon, while Venus, its 'sister planet', doesn't. Why is that? Did it ever have one? If it did, new research shows it was never going to last very long.

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