Asteroid shower rained space rocks on
Earth and the moon 800 million years ago
By Charles Q. Choi, SpaceCom, July 21, 2020
Asteroid shower on the Earth-Moon system
800 million years ago revealed by lunar craters
by Osaka University, PhysOrg, July 21, 2020
The open access paper is:
Terada, K., Morota, T. & Kato, M. Asteroid shower
on the Earth-Moon system immediately before
the Cryogenian period revealed by KAGUYA.
Nature Communications (2020). DOI: 10.1038/s41467-020-17115-6
Yours,
Paul H.