Exoplanets are planets that orbit stars other than the sun and thus exist outside the solar system. The word "exoplanet" ...

The catalog of known worlds beyond our solar system has crossed another threshold. NASA’s official tally now exceeds 6,000 ...

Add Yahoo as a preferred source to see more of our stories on Google. Lurking throughout the distant cosmos beyond the solar system, researchers recently found what they believe could be another ...

Astronomers have found GJ 251 c, a rocky planet. It is a super-Earth located only 18 light-years away. This planet is in its star's habitable zone. This means liquid water could exist there. The ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

Interstellar comet 3I/ATLAS, the third object ever confirmed to have originated beyond our solar system, is heading back into ...

Astronomers continue improving techniques to detect planets beyond our solar system. These distant worlds, called exoplanets, remain difficult to observe directly using current technology. Exoplanets ...

CC0 Usage Conditions ApplyClick for more information. Have you ever wondered if there is life on another planet? Exoplanets may hold the key to this question. They’re planets that orbit stars beyond ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

The comet, discovered in July 2025, originated far beyond our Solar System and is thought to be around 7 billion years old - even older than the Sun. Two stunning new images of the interstellar comet ...