A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

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 ...

Astronomers may be close to identifying a mysterious object in our solar system. New research points to a potential candidate ...

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

NASA has found a frozen sphere 13.8 times the mass of Jupiter in a forbidden zone in space where planets aren't supposed to ...