A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

Pluto was believed to be the only body beyond Neptune with an atmosphere. Now, a new discovery in our solar system is ...

Rogue planets sound like rare travelers among the stars, freed from the gravitational constraints of a host system, left to ...

A comet born around another star is carrying water unlike anything ever measured in our solar system. Interstellar comet ...

The findings could more than double our current database of worlds that loop around binary star systems. But researchers need ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system. It’s an unprecedented ...

A new solar telescope at Paranal studies the Sun to reduce stellar noise, helping scientists better detect and study ...

Astronomers now estimate there is at least one planet for every star in our galaxy. These worlds, called exoplanets, are ...

LYNCHBURG, Va. (WSET) — If you're trying to get a beautiful look at the planets in our solar system, you're in luck. Between February 25 and February 28, all seven planets in our solar system will be ...