The James Webb Space Telescope has captured amazing new imagery of Uranus along with its rings and moons. The footage shows ...

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. The sun will appear larger in the sky than on any ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

Most of the planets we’ve identified are in orbit around stars and formed from the disks of gas and dust that surrounded the ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a dramatic planetary breakup.

Astronomers just measured the mass of a free-floating planet without a star for the first time ...