For decades, our solar system was thought to have nine planets, with Pluto considered the smallest and farthest. But in 2006, ...

In a thrilling development that challenges long-held assumptions about the outer reaches of our solar system, astronomers ...

Astronomers have identified a new trans-Neptunian object, 2017 OF201, located far beyond Pluto. Its enormous size, comparable to dwarf planets, and hi ...

Hunting for the building blocks of life? Located in the asteroid belt, Ceres is likely a good bet, study finds ...

Astronomers have found a new minor planet beyond Pluto. This object, named 2017 OF201, is quite large. It orbits far from the ...

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

Webb’s powerful instruments have detected crystalline water ice in a distant star system, offering rare insight into planet ...