A piece of the moon may soon be orbiting near Earth. Scientists have discovered an asteroid that is believed to be a piece of the moon, broken off during a large impact event some 4 billion years ago. The asteroid, named 2021 AG5, is currently in an orbit that passes close to Earth, making it the closest known moon fragment of its kind. This rare near-Earth asteroid could help scientists better understand the formation of the moon and how it has changed over time.

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source: Phys.org