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 ...

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

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

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

The sun’s outer atmosphere resembles a pufferfish.

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...

The two biggest planets in our Solar System in one telescope view. And catastrophe is imminent. If Jupiter and Saturn ...

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

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

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