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

A giant wave of undulating gas and dust appears, per new research, to have engulfed our Solar System millions of years ago.

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 ...