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.

It's the largest, brightest and most massive object in the solar system, and it provides the light ... will be a dense ball ...

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

An international team of astronomers discovered a giant exoplanet named TOI-6894b orbiting a red dwarf star called TOI-6894, ...

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

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

Pertussis infections have surged in recent months, and some people may need an additional shot for protection.