Billions of years ago, in the icy outskirts of the solar system, a dramatic collision forged the unusual pairing of Pluto and ...

Mars will seem to disappear behind the full wolf moon Monday for many sky-gazers. Throughout January, also look up to see ...

The planet parade will be among the most special celestial events in 2025. However, many wonder what is a parade of planets.

New study reveals Pluto and Charon’s origin: a unique "kiss and capture" collision redefines how binary systems form.

Accustomed programming will ring in the New Year at the University of Wyoming Harry C. Vaughan Planetarium during January.

Unlike how scientists believe Earth's moon formed billions of years ago, Pluto and its biggest moon, Charon, didn't have a ...

The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...