Nitrogen-Ice Fragment from a Pluto-Like World Could Explain 1I/2017 U1 (‘Oumuamua)

To the point

Alan P. Jackson and Steven J. Desch propose that 1I/2017 U1 ‘Oumuamua is a nitrogen-ice fragment from a Pluto-like planet ejected from another star system about half a billion years ago, and that its pancake shape, lack of a visible coma, and apparent solar-acceleration can be explained by nitrogen ice sublimation as it passed the Sun.

Interstellar object ‘Oumuamua is likely a piece of a Pluto-like planet
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Interstellar object ‘Oumuamua is likely a piece of a Pluto-like planet

A new study resolves the not-quite-comet-like character of a strange visitor from beyond our solar system.