Theia and Earth

The Earth-Moon system coalesced 4.425 Gya. h/t Vox Day (voxday.com/2020/07/the-precision-of-science.html) and RT.com.

The Münsterites say earlier models had the Theia-Earth merger much earlier in the Solar System's formation, sooner after the first carbonaceous asteroids 4.567 Gya. RT says when the molten Earth was still in the process of taking shape and covered in a vast ocean of liquid magma which doesn't explain much. The press-release clarifies they mean that the Earth was already differentiating; that's when terms like "covering" and "ocean" make sense against an iron core.

The moon does seem more carbon-silicon than would be expected if Theia hit us when there was more iron circulating at the surface.

As for why the earlier bias: they say that we'd misinterpreted the age of the moon rocks. The ones we brought to Earth. You know, from those Apollo (and Luna!) missions which Vox Day doesn't believe happened excuse me, has Perfectly Reasonable Questions About.

This younger age for the Moon is linked to the formation of the Earth's own core. That's telling me that Theia had stirred up the Earth's innards again, which had to re-differentiate. That might explain what surface metals the Moon does have.

SIGH 10/24/23: At least this time "VD" Beale was not actively lying, but ... he was wrong again. On details, perhaps; 4.46 Gy is still nearly a hundred million years after 4.567. I note that VD has dropped that webpage, interestingly. UPDATE 2/2/24: As to that stirring of innards, the scrambling left residues.