A look at the potential effects of a rogue planet entering our solar system, from shifting Earth’s orbit to triggering ...

Astronomers are gathering evidence of a massive hidden planet lurking beyond Neptune. Trump Cuts Millions After California ...

A scientist spotted an asteroid hiding in the sun's glare that orbits the sun in just 128 days, making it the second fastest ...

The interstellar object 3I/ATLAS has gathered significant scientific attention, and soon it will reach its closest point to ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

Researchers are studying eccentric warm Jupiters, giant exoplanets that follow odd, elongated orbits unlike anything in our solar system.

The newly found exoplanet, named GJ 251 c, is about four times more massive than Earth and likely rocky, making it one of the ...

In the distant past, the solar system was rife with impacts and collisions. Millions of rocky objects zoomed chaotically ...

Visual: In this diagram, J, S, U, and N are the solar system’s giant planets. What’s the collective name for the objects in ...

Astronomers have found signs that the small icy world Chiron, orbiting between Saturn and Uranus, may be forming a new ring ...

Astronomers have identified GJ 251 c, a super-Earth exoplanet just 18 light-years away, orbiting within its star's habitable ...

In a first, researchers have discovered fragments of Earth's precursor that contain distinctive chemical fingerprints in ...