Earth's oldest rock was found by Apollo 14 astronauts -- on the moon - CNN

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Earth's oldest rock was found by Apollo 14 astronauts -- on the moon (https://www.cnn.com/2019/01/24/world/earth-oldest-rock-moon/index.html) CNNWhen the Apollo 14 astronauts returned samples from the moon's surface, they probably didn't realize that they were reuniting Earth with a bit of its early history.
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