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

The solar system has an uninvited guest that is currently shooting toward us on a one-way trip through our cosmic ...

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

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

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

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.

The question of how life began has captivated humanity for millennia. Now, a team of scientists are preparing to use NASA's ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

Names are a strange thing in astronomy. Sometimes scientists come up with grandiose, simple name, like the Extremely Large ...