Astronomers using the James Webb Space Telescope have directly detected the faint glow of a planet that’s colder than any world whose light has been directly observed—an astonishing detection that ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, researchers say.

At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

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

One set of dots had matching colors and brightness. open image in gallery Is there a possible ninth planet in our solar system? Researchers say they may have found a candidate (Credit: ESO/Tom ...

Astronomers have found new evidence that a mysterious ninth planet may be hiding at the edge of the solar system - rewriting what we know about the cosmos again. An international team from Taiwan ...

Tatooine-Like Planet Outside the Solar System May Orbit Two Failed Stars, Scientists Say NEW YORK (AP) — A new Tatooine-like planet outside the solar system may orbit two failed stars ...

All of our solar system’s planets are lining up in the ... which is most the distant planet, takes nearly 165 Earth years. A great alignment is possible only when the planets are all relatively ...

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. Located about 120 light years away, the exoplanet appears to take an unusual path ...