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

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy material, the ingredients of planets," according to NASA's Goddard Space ...

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

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 ...

A team of astronomers observed a confused exoplanet orbiting its two parent stars in a highly unusual way. As New Scientist ...

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

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

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

NASA's Perseverance rover is exploring a new Mars region called Krokodillen, which is thought to harbor some of the oldest and most intriguing rocks on the Red Planet.

Starting June 30, 2025, all car seats sold in the U.S. must meet new federal safety standards aimed at improving protection ...