The mysterious 'Oumuamua interstellar object may have a simple explanation after all. A new study aligns with previous research suggesting the object is a comet, not an alien spacecraft. - NBCNewsMACH
But the authors of the new paper, which will be published in an upcoming issue of the Astrophysical Journal Letters, discount that idea. They say their research shows that while 'Oumuamua's appearance and behavior are unusual, they are nonetheless consistent with a comet, and that there's no reason to entertain more radical ideas.
Or as Konstantin Batygin, an astrophysicist at Caltech and a co-author of the paper, said in an email,"What our paper demonstrates is that some of its remarkable properties can be understood within the framework of relatively standard cometary physics.
The simulations also offer a possible explanation for another of 'Oumuamua's odd behaviors: that it didn't start spinning rapidly as it passed near the sun. 'Oumuamua is"clearly weird relative to the 'typical' comets that we would have expected from other stars," Loeb said in an email."We do not know the nature of 'Oumuamua, which could be artificial. We should not pretend that it must be a comet because it did not look like the typical comet we have seen before."
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