The Moon might once have been home to aliens.
Extraterrestrial life might have made its way to our nearest neighbour after a meteorite blast, scientists have suggested. And when it did, the atmosphere might have been far more habitable than it is today, ready to support life, if only briefly.
That is according to two senior planetary researchers who found that the Moon might have had conditions to support simple lifeforms some four billion years ago. The same conditions might have arrived during a peak of volcanic activity 3.5 billion years ago, claim the researchers.
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