A massive interstellar object passing through our solar system during its formative years likely altered the orbits of planets into trajectories observed today, a new study says. Interactions with ...

A pair of scientists may have figured out interstellar asteroid ‘Oumuamua’s secret — and it’s not an alien spaceship after all. When the first known interstellar object passed through our Solar System ...

Astronomers have been tracking a mysterious object near the center of the galaxy for decades, and now a new study has shed light on its identity – and its eventual fate in the coming years, when it ...

Add Yahoo as a preferred source to see more of our stories on Google. A mysterious object found deep in the cosmos could soon have astronomers rethinking what they know about dark matter. That's ...

Sometimes a space cigar is just a cigar – unless it’s a cookie. The mysterious object that blew into our solar system in 2017 and had at least one astrophysicist speculating about alien origins has ...

A new study from BYU professor of physics and astronomy Darin Ragozzine and former undergraduate student Maia Nelsen provides new insight into the structure of objects in the Kuiper Belt. Using data ...

An interstellar object previously believed by some to be from aliens might actually be a piece of a planet from another solar system, according to a new study. Desch mentioned that some have deemed ...