What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

Shining in the constellation Gemini near the bright stars Pollux and Castor, Jupiter's opposition is the best time to see the ...

Jupiter currently shines as a brilliant silvery "star" in the constellation Gemini the Twins, low in the east-northeast sky ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

Stars and planets are inextricably linked. They form together and stars shape the fate of planets. Stars create the dusty ...

The sun’s outer atmosphere resembles a pufferfish.

Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

Discover why the solar system's planets are arranged as they are, shaped by formation conditions and planetary migration.

We’ve sent spacecraft to every planet in the solar system, but each world presents a different kind of danger. Mercury ...

Our Solar System has eight planets, a few dwarf planets and more than 200 moons. But wait. Are you seeing double? Or did ...

A solar conjunction occurs as Venus' orbit carries it into alignment with the sun and Earth. Venus will align with the sun ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the ...