Moon discovery: Ancient 4-billion-year-old relic found on lunar surface [possible Earth rock]

FoxNews.com/Science ^ | Jan 25, 2019 | Chris Ciaccia | Fox News

[Verginius Rufus]

Thanks for satisfying my idle curiosity. Not sure what I can do with the knowledge, but it's something interesting to know.

I was aware of Kepler's 3rd law as it applies to the planets (Jupiter's period squared is equal to its distance cubed, etc.) but it had not occurred to me to use it to find an unknown value.

[OneVike]

Bump.

[MadMax, the Grinning Reaper]

I have a beautiful pock-marked Tektite from Thailand. Moon rock ejectile or space coprolite?

Also have a tiny piece of a meteorite. Stoney type. Couldn’t find any at Meteor Crater. Boy was I disappointed. Just a big old hole in the ground. /sarc