Talk:Giant-impact hypothesis

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Missing source[edit]

The very first source on this article is broken. This should probably be fixed? — Preceding unsigned comment added by 84.202.115.49 (talk) 11:51, 27 November 2016 (UTC)

Basic model problems[edit]

The Basic Model section says:

Astronomers think the collision between Earth and Theia happened at approximately 4.4 and 4.45[12] bya; about 30–50 million years after the Solar System began to form.

This is conflating two theories: old-moon and young-moon. The old-moon theory has the impact occurring at 4.53 ga, or about 38 million years after the date for the CAIs (Calcium–aluminium-rich inclusion) which is taken as a substitute for the age of the solar system and the beginning of the formation of the earth. The young moon theory was originally 4.45-4.47 but has since been revised to 4.47 ga. This was originally supported by re-analysis of Apollo 12 moon rocks, but has been independently corroborated by material from meteorites containing debris from the collision. Zyxwv99 (talk) 19:19, 14 April 2016 (UTC)

Theia, Thea as separate pages[edit]

The header at the top of the page says that Theia (planet) redirects here, but since 2013 it has had its own article. The spelling variation Theia (Planet) redirects there. On the other hand, Thea (planet) redirects here. I'm not proposing a resolution, just asking what people think the optimum solution would be. -- Elphion (talk) 23:33, 30 April 2016 (UTC)

possibility of giant impact[edit]

 how was  the main body and condition of Earth crust , when giant impact occurred?

this is main and principal question. Which can bright the way of finding exact and real facts.--Akbarmohammadzade (talk) 13:29, 12 May 2016 (UTC)

External links modified[edit]

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