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The BBC has a report that evidence has been found in lunar rock samples of a planetismal (called Theia) that was thought to have crashed into the Earth to form the Moon. The conclusion is based on a difference in oxygen isotope ratios detected in lunar rock samples returned from the Apollo space missions versus terrestrial samples.
The report is published in the journal Science [abstract]; report is paywalled.
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Evidence Of Planet That Formed Moon May have been Found In Rock Samples
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Hacking's just another word for nothing left to kludge.
(Score: 3, Interesting) by JeanCroix on Friday June 06 2014, @03:21PM
(Score: 2) by Alfred on Friday June 06 2014, @05:53PM
Thank you for not pointing to a long video, my lunch break isn't really long. Two minutes I can do.
Breakdown:
0:08 to 1:00 is stuff floating around in space and some things collide. Our feature subject, presumably the earth, is established as mostly molten.
1:00 A second body with some lines of lava smashes into the first
1:06 to 1:18 shows the smaller sinking into the larger
1:19 to 1:22 is some kind of filler, a crusty/molten surface and a debris ring?
1:23 to 1:53 is the moon orbiting and sucking up debris while it looks like the dropping lava out the south pole.
The most important part, how the two separate, that time from collision to orbiting moon, is entirely missing. The three second filler shows/explains nothing when it should have been the core of the feature. This is what I want explained.
I think the consensuses is things in space collide and there are molten things. What happens otherwise has yet to be explained.