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

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

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

This discovery marks the first known case of a compact planetary system with such a noticeable tilt between close planet ...

In our analysis this week, we look at how NASA's proposed budget would slash the agency's science division by nearly 50%.

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

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

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 ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.