Scientists have found a massive rocky world far beyond our solar system that is more than 20 times the mass of Earth.

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 ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

For astrobiologists, the search for life beyond our solar system could be likened to where one would look in a vast desert—essentially, where there's water. And it turns out that one of the most ...

Far beyond the planets, past even the most distant dwarf worlds, lies a vast shell of icy debris that marks the true outer ...

The search for life beyond Earth has marked a new discovery — evidence of an atmosphere on an Earth-like planet beyond our Solar System with modelling suggesting it may be a water world.

Nearly 4.5 million years ago, two large, hot stars brushed tantalizingly close to Earth's sun. They left behind a trace in the clouds of gas and dust that swirl just beyond our solar system—almost ...

Add Yahoo as a preferred source to see more of our stories on Google. An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...

Astronomers are rolling out a welcome mat for a newly identified visitor from beyond our solar system. The object — thought to be a comet — is only the third-ever confirmed interstellar visitor to ...

Sub-Neptune exoplanets tend to be much closer to their host star than Earth is to the Sun and are thought to have atmospheres made of steam over layers of an exotic phase of water that behaves like ...

Lurking throughout the distant cosmos beyond the solar system, researchers recently found what they believe could be another whopping 10,000 planets orbiting suns that aren't our own. The Milky Way ...