5 years ago
Apollo Astronauts May Have Found the Oldest Earth Rock We Know On the Moon
One of Earth's oldest rocks may have been dug up on the moon. A chunk of material brought back from the lunar surface by Apollo astronauts in 1971 harbors a tiny piece of Earth, a new study suggests. The Earth fragment was likely blasted off our planet by a powerful impact about 4 billion years ago, according to the new research.
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