Astronomers have discovered what they think may be another moon orbiting a distant dwarf planet called Quaoar. This small, ...

There are quite a few other places we might find life in the solar system, including dwarf planets like Ceres. Ceres is ...

Io isn’t just another moon, it’s the most volcanically active body in the entire solar system. Orbiting Jupiter, Io is ...

A Jupiter-like planet has been found orbiting a young sun-like star in a solar system far away in what is a potentially ...

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger than Jupiter.

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and probing mysteries of the Universe.

Orbiting Saturn lies a quiet enigma - Rhea, the second-largest of its moons. Discovered in 1672 by Giovanni Cassini, Rhea has ...

There are also exoplanets with extremely varied sizes. Some are much larger than Jupiter, which is already a giant in our ...

TRAPPIST-1 is a red dwarf star located about 40 light years away that hosts seven Earth-sized rocky planets, with at least ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

Called 3I/ATLAS, the object is only the third of its kind known to astronomers, and it’s likely been heading our way for ...

The provisionally named S/2025 U1 is so small it had gone unnoticed by probes and telescopes for the past 40 years.