How did the moon form? A supercomputer may have just found the answer

The moon could have formed immediately after a cataclysmic impact ripped off a chunk of Earth and hurled it into space, according to a new study.

Since the mid-1970s, astronomers have believed that the moon could have been caused by a collision between Earth and a former March– size protoplanet called Theia; the colossal impact would have created a massive debris field from which our lunar companion slowly formed over thousands of years.

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