Earth may once have had two moons

A new theory suggests the Earth once had a small second moon that perished in a slow motion collision with its “big sister”.

Researchers suggest the collision may explain the mysterious mountains on the far side of our Moon.

The scientists say the relatively slow speed of the crash was crucial in adding material to the rarely-seen lunar hemisphere.

The researchers involved hope that data from two US space agency (Nasa) lunar missions will substantiate or challenge their theory within the next year.

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By Student Express Posted in News

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