The cigar-shaped asteroid from outside our solar system, ‘Oumuamua’, is spinning chaotically, and will carry on doing so for more than a billion years because it's been in a collision in the past, as reported in a new study in Nature Astronomy.

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The cigar-shaped asteroid from outside our solar system, ‘Oumuamua’, is spinning chaotically, and will carry on doing so for more than a billion years because it's been in a collision in the past, as reported in a new study in Nature Astronomy.