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The Busy Center of the Lagoon Nebula

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Comparison of a picture from Mars (left) to a picture from Earth (right) (lemmy.world)

submitted 2 months ago by [email protected] to c/[email protected]

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[–] [email protected] 3 points 2 months ago (1 children)

I think they mean Mars could be Theia.

[–] [email protected] 1 points 2 months ago (1 children)

I think the fact that it’s really far away, in a circular orbit, and doesn’t have a big chunk missing is still a good sign that mars isn’t theia

[–] [email protected] 1 points 2 months ago* (last edited 2 months ago)

Why would it have a chunk missing after all this time? If it did could we even tell? Whatever it was isn’t still in the area so being far away may not mean much. Circular orbit is probably biggest reason it’s likely not Mars, although it could have evened out relatively recently.

This simulation shows the Mars sized object merging with Earth so there goes that theory.