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

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

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

Around 4.6 billion years ago, a vast cloud of gas and dust called a molecular cloud drifted through the Milky Way. Composed ...

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

“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 ...

The answers to those questions depend on how we define the death of the solar system.

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

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

"It could represent some of the oldest and most pristine water ever observed, formed in another planetary system and ...

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 ...