Astronomers at Yale and Caltech say that ‘Oumuamua, the much-discussed interstellar space rock, is best viewed as a comet with odd properties — and not an alien probe, as has been suggested. ‘Oumuamua ...

Early reports of the interstellar visitor 'Oumuamua's odd characteristics led some to speculate that the object could be an alien spacecraft, sent from a distant civilization to examine our star ...

This article originally appeared on Sky & Telescope. The brief interstellar visitor ‘Oumuamua left many mysteries in the wake of its zippy flight through the solar system. The changes in its ...

A NASA JPL researcher has calculated that Oumuamua was probably a cloud of debris and not an interstellar space sail fragment. There was a Harvard research theory that Oumuamua was an interstellar ...

The space rock was named Oumuamua, which is Hawaiian for "scout" or "messenger." The rock passed through our solar system in 2017. Astronomers initially classified it as a comet, then an asteroid then ...

Comet 2I/Borisov, the second-ever discovered interstellar object, has a familiar look to it, similar to the other comets that are common throughout our solar system, according to a new study. This ...

Abraham Loeb, chair of Harvard’s department of astronomy, recently gave a freewheeling interview to the Israeli newspaper Haaretz in which he defended his hypothesis that a piece of alien technology ...

It is part of the human experience to slowly realize we are each an isolated mind in a sea of other isolated minds, and then to spend our lives trying to cross the mighty gulfs between ourselves and ...

The second interstellar object on record has visited our solar system, according to astronomical observations made in recent week. But how does this new visitor differ from ‘Oumuamua, the first ...

Billions of years ago, our Solar System was an extraordinarily different place from what we know today. Earth had no multicellular lifeforms on it: no plants, no animals, no sexual reproduction.

Unfortunately for the Fox Mulders of the world, new research published in the journal Nature Astronomy on Monday, which conducted a deep analysis on existing data — including a December 2017 study of ...