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 ...

Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar ...

James Webb Space Telescope detects frozen water in a distant young star system, revealing a Kuiper Belt–like icy debris disk.

A groundbreaking discovery confirmed by NASA surrounding a young star offers new insights into planet formation and the role ...

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

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

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 ...

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

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

With its initial satellites deployed, Amazon joins a high-risk game of low Earth orbit dominance with SpaceX, China, and the ...

On May 21, the International Astronomical Union’s Minor Planet Center announced the discovery of 2017 OF 201, which, because ...