Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

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

An international planet hunt spearheaded by Monash University researchers has discovered evidence of five new baby planets, ...

A new look through decades-old data has unveiled some of the most compelling evidence yet of a hidden ninth planet in the far ...

A new study, however, identifies a possible candidate. A separate team of astronomers compared 1983 data from the Infrared ...

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 ...

According to a new pre-print study ... 1:54 Astronomers talk about evidence of 9th planet in our solar system Astronomer Mike Brown, who was first to propose the Planet 9 hypothesis in 2016 ...

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

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...

Thanks to JWST, we've learned key details about methanol — a key building block for organic compounds necessary for life — on ...