"There are still many things related to planetary formation and the early evolution of young planetary systems that we don't ...

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

Two significant additional discoveries-the identification of twin water worlds, Kepler-138c and d, and the existence of water ...

Six planets will all be visible at once in the night sky this month, lined up across the sky—but one is set to disappear from view.

Scientists have received an unexpected Christmas gift this year: a potential solution to the mystery of JuMBOs, strange celestial objects that seem not to be planets or stars. Try putting a bow on ...