Big Bertha
How an Ancient Rock Carrying Earth’s Oldest Known Crystals Ended Up on the Moon
"Big Bertha," a lunar rock that was picked up by Apollo 14 astronauts, originated on Earth 4.1 billion years ago, according to a new study.
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"Big Bertha," a lunar rock that was picked up by Apollo 14 astronauts, originated on Earth 4.1 billion years ago, according to a new study.