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.

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

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 ...

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

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