A “mysterious” gravitational mass has been discovered buried below a 4-billion-year-old crater on the Moon: https://www.theloop.ca/ctvnews/mysterious-gravitational-mass-found-buried-on-far-side-of-moon/
As reported in Geophysical Research Letters, scientists say the mass may be remnant metal from an asteroid that created the South Pole-Aitken basin. I’ve written to the study’s lead authors, asking…