Interstellar travel could be possible, scientists say, but not in the way you might think. For decades, science fiction stories have proposed the idea of traveling outside of our known galaxy. This ...

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as 3I/Atlas will pass within ...

Christopher Nolan’s Interstellar created a black hole that would later turn out to be fairly scientifically accurate.

A cool interstellar comet that for millions of years has drifted in the spaces between our stars is now back in our telescope viewing range and will make its closest approach to Earth this week. We’re ...