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 ...

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

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.

Heliostats that harness sunlight by day could help detect asteroids by night, offering the U.S. a scalable planetary defense ...

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

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

Another NASA-funded tech demo named Athena EPIC was also aboard the Falcon 9 rocket. Led by NASA's Langley Research Center, ...

"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 ...