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earth rock 4 billion years ago an asteroid blasted a piece of earth to the moon 4 e1620826510315.
In addition, the chemistry of the zircon in this sample is very different from that of every other zircon grain ever analyzed in lunar samples, and remarkably similar to that of zircons found on Earth.” Professor Nemchin said the chemistry of the zircon lunar sample indicated that it formed at low temperature and probably in the presence of water and ...
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