Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.

The Milky Way is a spiral galaxy and our Solar System is about half-way along one of its arms. Our Sun orbits the centre of the Milky Way at about 140 miles every second. It takes about 230 ...

In this special Hubble image 23 years in the making, the sparkling spiral galaxy UGC 10043 reveals the secrets of its ...

Our solar system resides in a galaxy called the Milky Way, stuffed with between 100 billion and 400 billion other stars, many of them with planets of their own Every star that you see in the sky ...

Many stars in our galaxy exist in pairs. Now scientists are finding clues that our Sun may once have had a companion of its own. The question is, where did it go?

Astronomers have long tried to track down how elements like carbon, which is essential for life, become widely distributed across the universe. Now, NASA’s James Webb Space Telescope has examined one ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners ...

While most objects in our solar system orbit the same plane ... And we've even observed fluctuations of starlight in our own galaxy, which primordial black holes could explain.

It's possible for our solar system to capture a rogue planet and give it a home as it hurtles through the galaxy, according to a new study. In 2017, astronomers at the Pan-STARRS1 observatory were ...

Using data from the eRosita X-ray instrument, researchers say they’ve discovered a “cosmic tunnel” that connects our solar system to other stars. Scientists have long known that our solar ...

MORE: This is how close NASA's Parker Solar Probe got to the sun ... of individual stars in a distant galaxy is possible," ...