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 ...

Researchers at the California Institute of Technology (Caltech) have found new evidence that further suggests there is a ninth planet in our solar system. Nicknamed "Planet Nine," researchers said ...

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 ...

An international research team used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe disks around 19 protostars with a very high resolution to search for the earliest signs of planet ...

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 ...

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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 ...

It has been about three decades since the first confirmed exoplanet was discovered. In the following 30 years, using a variety of telescopes and instruments on the ground and in space, astronomers ...