The Sun is extremely active right now, blasting the Earth with the biggest solar storms in 20 years. This is what it is doing to the rest of the Solar System.

Scientists recently discovered an infrared aurora on Uranus, but these light displays are surprisingly common on other planets and are providing valuable insights about alien worlds.

Extraterrestrial life could really be out there – here is some of what we know.

Future missions to Venus need tough new technologies – and an old one. Jesse Emspak reports

Here and there, all over the world, there are islands which don’t conclusively belong to anyone. But why do disputes over who owns these tiny rocks in the sea never get resolved?

Could the light from stars be hiding evidence of extraterrestrial life? A giant “Starshade” could soon reveal answers.

Astrophysicist Sara Seager believes she has a way to reveal the biological secrets of a ‘second Earth’ – watch the video above to see how.

There's a secret world of hidden independent nations, with their own populations, governments – and football leagues. In fact, you’ve almost certainly visited one without realising.