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You are here: Home / Space / What Is the Sister Theory of the Moon’s Formation and When Did We Discover That the Theory Was Unfeasible?

What Is the Sister Theory of the Moon’s Formation and When Did We Discover That the Theory Was Unfeasible?

March 5, 2020 by Karen Hill

The sister theory proposes that the Moon may have formed along with Earth as a result of the formation of the solar system.

When astronauts retrieved moon rocks in 1969, however, scientists discovered that they were not made of matter from the solar nebula.

If they were, they would have matched Earth rocks more closely.

Moon rocks contain material such as that found in Earth’s crust, which supports the theory of an asteroid collision.

The sister hypotheses or theory also cannot account for the high angular momentum of the Earth–Moon system.

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Filed Under: Space

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

Previous Post: « Where Did the Moon Come From, How Did Earth Get Its Only Satellite, and How Long Ago Was the Moon Created?
Next Post: What Is a Satellite and What Is the Difference Between a Satellite and a Moon In Astronomy? »

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