One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...

Astronomers believe they've discovered a spiral structure inside the Oort cloud that surrounds our solar system.

NASA’s Pleiades supercomputer has provided fresh insights into the Oort cloud – ​​a vast, theoretical spherical shell of icy objects that surrounds our solar system. For a long time, the Oort cloud’s ...