For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

For decades, Pluto was thought to be just another frozen rock spinning around the Sun, far from the action and mystery of the ...

A newly discovered gas giant, called TOI-6894b, orbiting a low-mass red dwarf star defies existing models of planet formation ...

The discovery of a Saturn-sized gas giant orbiting a small red dwarf is urging astronomers to reconsider their theories of ...

Enjoy a close conjunction of the solar system’s smallest and largest planet just days before the Full Strawberry Moon this ...

The discovery of the exoplanet, a super-Earth called Kepler-735c, is all down to something called transit timing variations, ...