The moon formed when Theia hit the earth. The surface of the moon is mostly material from the #earth with the same isotopes... but if we could drill into the moon... we could find some of #Theia according to some models of the collision.

Theia is still here! Just covered in a super thick earthy sweater.

I don't know why I find this so exciting-- it's probably not going to be anything shocking...

I guess Theia always seemed... vanished into the deep past. But Theia remains. #musings #moon

@futurebird what a nice rabbit hole. Learned about Lagrange spots today. Two bigger bodies almost sharing the same orbit, isn‘t that a bit exotic?

@tanoujin @futurebird

"Oh give me a focus,
Where the gravitons focus,
And the three-body problem is solved,
Where the microwaves play,
Down at three degrees 'kay',
And the cold-virus never evolved"

Chorus:
"Home, home on Lagrange..."
etc.