The International Astronomical Union’s Minor Planet Center, which catalogs new moons and other small bodies in the solar system, announced the discovery on May 21. At roughly 435 miles wide, 2017 ...

Scientists have discovered a mysterious new object far beyond Neptune, and it could be one of the most distant dwarf planets ...

Scientists had previously believed that no celestial bodies existed in the vast, empty section of space beyond Neptune.

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

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

The universe is unimaginably vast, with over 2 trillion galaxies and still expanding, far beyond human exploration.

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

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