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Meet 'Oumuamua, the interstellar asteroid, before it's gone for good

Meet 'Oumuamua, the interstellar asteroid, before it's gone for good

Astronomers have spotted an unprecedented interplanetary traveler: an asteroid-like object that came from far beyond our own solar system.

The discovery of ‘Oumuamua, described in the journal Nature, marks the first time that researchers have identified an interstellar object — and it could mean that there are many more already in our solar system just waiting to be found.

The fast-moving space rock, known formally as 1I/2017 U1, was spotted Oct. 19 by Robert Weryk of the Institute for Astronomy using the Pan-STARRS1 telescope system, which is hunting for near-Earth objects that could be hazardous to...

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