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Study suggests Moon was once part of the Earth


The Earth and the Moon are similar in chemistry and composition, and a new study may suggest why
The Earth and the Moon are similar in chemistry and composition, and a new study may suggest why

Cheryl Santa Maria, staff writer

October 20, 2012 — A new study by Harvard scientists suggests that the Moon was created from the Earth in a giant space collision.

The Earth and the Moon are similar in chemistry and composition, and a new study may suggest why.

Researchers at Harvard University theorize that the Moon was once part of the Earth -- and it could have spun off during a massive collision with another giant body in space.

During that time, the Earth would have been spinning much faster, and a day would have lasted between two and three hours.

The accelerated rate of rotation would have been able to launch enough material to create a moon, the study says.

The findings have been published in a recent issue of the journal Science.

With files from Reuters

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