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

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

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

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

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

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

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

Do you know what would happen if the largest planet in our solar system suddenly exploded? In this fascinating video, we ...

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.

“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 Purdue University in West Lafayette, Indiana, tells Nature’s Jenna Ahart.

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

Gain access to all articles, ad-free browsing, exclusive content, The Vault, and other benefits!