NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

The newest visitor is 416 million miles from the sun, out near Jupiter, and heading this way at a blistering 37 miles per ...

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth? A discovery ...

For only the third time in recorded history, an interstellar object has crossed into our solar system, creating quite the ...

The host star, HIP 67522, is slightly larger and cooler than our Sun. But unlike our middle-aged star, this one is just 17 ...

Astronomers have spotted a new interstellar object — the third of its kind ever seen — shooting towards us through the solar ...

Earth" that is located about 154 light-years away and is nearly twice as big and four times as massive as our planet.

A discovery made by a NASA rover has offered a clue for this mystery, new research said Wednesday, suggesting that while ...

Proxima Centauri b is the closest known exoplanet to our solar system that is thought to be within the habitable zone of its star.

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...