Nature Astronomy, Published online: 19 April 2024; doi:10.1038/s41550-024-02258-z

The Earth co-orbital asteroid Kamo‘oalewa, which is a target of the Chinese Tianwen-2 mission, may have a lunar origin instead of an asteroidal one. Dynamical constraints from numerical simulations suggest that it could be an escaping fragment from the lunar Giordano Bruno crater.

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