Astronomers searching for some of the universe’s first galaxies have uncovered a surprising case of mistaken identity.

A conceptual mission known as "Persephone" could explore Pluto and its moons for 50 years — if it ever gets funded and ...

In a new study, scientists at the University of Missouri looked deep into the universe and found something unexpected. Using ...

Planet could be a gas giant, orbiting 1 to 2 times the distance between Sun and Earth. The Alpha Centauri system, our nearest stellar neighbor, has long captured the imagination of science fiction and ...

The James Webb Space Telescope have found evidence of massive planets capable of forming their own planetary systems — ...

New data from the James Webb telescope reveals that Pluto's strange atmospheric haze controls its climate, surprising ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...