A newly-discovered planet named Enaiposha, GJ 1214 b, is unlike anything found in our own solar system, similar to a ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

Pluto's 2006 status change from planet to dwarf planet is still a sore subject for many, including a fourth grader in Tampa, ...

Astronomers have discovered icy rocks in the outer solar system that seem to defy the laws of physics, raising questions ...

Astronomers at The University of New Mexico have published new research confirming three bodies orbiting the dynamic ...

A 10-year-old’s passion for Pluto has caught the attention of NASA thanks to a compelling, viral letter on social media.

Scientists may have found the first planet ever detected around our closest “solar twin,” a star called Alpha Centauri A, the same real-life star that was home to the fictional moon Pandora in James ...