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.

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

Dubbed 3I/ATLAS, it is blazing through our cosmic cul-de-sac at truly awe-inspiring speeds between the main asteroid belt and ...

There are currently no known asteroids on an impact course with the planet. Still, scientists are keeping a watchful eye on ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ...

Once a realm of imagination and stargazing, the Solar System has now been revealed in stunning clarity through decades of ...

A groundbreaking study published in Communications Earth & Environment has called into question the long-standing assumptions ...

How did Earth, alone among the solar system's rocky planets, become the home for life? How, among all this frigid ...

A meteorite, Northwest Africa 12264, is questioning the established timeline of our solar system's formation, suggesting ...

How did Earth, alone among the Solar System's rocky planets, become the home for life? How, among all this frigid ...

NASA's Lucy mission captured the highest resolution image yet of Donaldjohanson, the uniquely shaped asteroid.