In 2017, the mysterious interstellar object 'Oumuamua passed through our Solar System, sparking a heated debate about its true nature. While it was initially considered just another asteroid or comet, ...

A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar ...

A newly discovered object speeding through our solar system could be something far stranger than a comet, possibly even alien ...

The space rock 3I/ATLAS is only the third confirmed interstellar object discovered by astronomers, following 'Oumuamua and ...

The interstellar object 'Oumuamua made headlines when it passed through our solar system, sparking intrigue and mystery among ...

We have discovered two interstellar objects so far, ’Oumuamua and Comet 2I/Borisov. ’Oumuamua had no dust tail and a ...

Is ' Oumuamua a comet — or an alien spaceship? We may never learn for certain the identity of the oblong, stadium-size space object that was seen speeding past Earth in the fall of 2017, but a ...

‘Oumuamua, the first interstellar interloper detected passing through our solar system, raised many questions. According to a new model, the object’s unusual shape and trajectory may be the ...

Fleeting visitor The name scientists gave ‘Oumuamua translates from Hawaiian as “a messenger from the distant past, reaching out to us”. On 19 October 2017 – 40 days after it had gone past its closest ...

‘Oumuamua, named for the Hawaiian term for messenger or scout, was discovered on Oct. 19 by the Pan-STARRS1 telescope system, which searches for nearby objects that could pose a threat to Earth.

So, though 'Oumuamua may be the first and only interstellar visitor astronomers have spotted in the solar system, this kind of interstellar object may not be that rare, astronomers say.

`Oumuamua, the first interstellar object discovered in the Solar System, is moving away from the Sun faster than expected. This anomalous behavior was detected by a worldwide astronomical ...