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 if you want to find Theia, there may be bits of her around. for instance in analyses like this, which i find fascinating
https://www.nature.com/articles/s41467-018-03808-6
there might be more updates on this particular analysis
Ureilites are a type of meteorite that are believed to be derived from a parent body that was impacted in the early solar system. Here, the authors analyse inclusions within diamonds from a ureilite meteorite and find that they must have formed at above 20 GPa suggesting the parent body was Mercury- to Mars-sized.
myrmepropagandist
Barry Goldman