Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers have spotted an object from outside our solar system bolting toward the Sun at around 150,000 mph (240,000 km/h).

Scientists have observed a new type of black hole that is too heavy to have been born from a star but still too slim to … The ...

We live in a world defined by inches, feet and miles (or centimeters, meters and kilometers, if you prefer), and it’s not difficult for most of us to ...

The first interstellar object spotted in our Solar System was the cigar-shaped ‘Oumuamua, discovered in 2017 by the ...

It appears our solar system is getting more popular with out-of-towners. Astronomers have found a third interstellar object, ...

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

It's only the third time that experts have spotted an object in the Milky Way that's come from a different solar system. Find out more here.

This discovery marks the first known case of a compact planetary system with such a noticeable tilt between close planet ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it's not from ...

Astronomers have finally caught a dying star in space going out with a bang — and then another bang. The new photographic ...