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Bampot@lemmy.world

1st known interstellar visitor 'Oumuamua is an 'exo-Pluto' — a completely new class of object, scientists say (www.space.com)

submitted 1 week ago by Bampot@lemmy.world to c/jingszo@lemmy.world

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The first interstellar object to visit the solar system may have been a fragment of an icy exoplanet, research suggests.

Everything about this object is consistent with it being a slab of nitrogen ice like you see on the surface of Pluto.

Instead of being a mix of water ice, rock and carbon-rich material left over from the formation of the solar system, 'Oumuamua appears to be almost pure nitrogen ice. And rather than being a compact ball, the visitor is more elongated than any known body in the solar system and starkly different from the interstellar Comets 2I/Borisov and 3I/ATLAS, the only other known interstellar visitors.

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