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

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

Across the Milky Way, planets slightly larger than Earth but smaller than Neptune appear around most stars. Yet our own solar ...

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.

The upcoming year will offer a blood-red moon, spectacular meteor showers and the first glimpse of the sun’s corona since ...

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

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

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

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

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

CAPE CANAVERAL, Fla. — Astronomers have discovered a rare solar system in the Milky Way that boasts six planets orbiting in perfect rhythm like a cosmic orchestra, untouched by outside forces since ...

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