A distant, icy body circling the Sun far beyond Neptune has handed astronomers a fresh puzzle. Designated 2023 KQ14 and nicknamed Ammonite, the trans-Neptunian object follows a Sedna-like orbit with a ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A distant exoplanet that shouldn't be there anymore has continued to ...

Two faint objects hiding in archival infrared sky maps now sit at the center of a growing scientific argument about whether a ...

Is there a hidden ninth planet far from the sun affecting the orbits of distant space rocks? New research pours cold water on the theory. Daniel Van Boom is an award-winning Senior Writer based in ...

Astronomers know very little about the far outer Solar System — beyond Neptune, Pluto, and the far-flung Kuiper belt. For the past seven years, some scientists have observed certain gravitational ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Astronomers may have finally figured out why a distant exoplanet with ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An image of dwarf planet ...