Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

Strange hexagonal diamonds may have been jettisoned into space when a dwarf planet collided with a large asteroid around 4.5 billion years ago. A new model exploring the dwarf planet Ceres ...

Ceres is a small, cold dwarf planet in the asteroid belt between Mars and Jupiter, but billions of years ago it could have ...

Rocky planets orbiting in an M-dwarf’s habitable zone are called M-Earths. M-Earths differ from our Earth in fundamental ways.

NASA’s James Webb Space Telescope finds TRAPPIST-1 d lacks an Earth-like atmosphere, narrowing the search for habitable planets.

A new study by Manuel Barrientos and colleagues from the University of Oklahoma reveals that between 0.6% and 2.5% of white dwarfs in our solar neighborhood undergo dramatic cooling delays that could ...