Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and ...

The Solar System, home to Earth and countless other fascinating planets and moons, exists within the Milky Way galaxy. But ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...

Scientists have spotted a mysterious object flying through our Solar System. A new paper suggests it might be an alien ...

Comet 3I/ATLAS was first identified by the Asteroid Terrestrial-impact Last Alert System (ATLAS), a global network of four ...

“What we’ve been trying to do is find a baby version of our Solar System somewhere else,” Merel van ’t Hoff, an astronomer at ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

"We believe that continuing such activities will further expand our horizon in the field of planetary science." ...

The solar system is teaming with small bodies such as comets and asteroids. These space rocks were fundamental building blocks of planets in the early solar system, while the remaining leftovers ...

Solar System: Icy Worlds. Season 51 Episode 12 | 53m 34s Video has Audio Description, Closed Captions | AD CC. Visit strange, frozen worlds to discover the bizarre ice that forms beyond Earth. Out ...