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

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

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about "little green men" here, however — more "little (and not so little) gray ...

Asteroids and comets from Alpha Centauri are lurking on the outer edges of our solar system. There is a record of two ...

The three-star system, which likely hosts planets, is slowly moving closer to us and will reach its closest point in about 28,000 years.

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and how it got here.A new study ...

Alpha Centauri asteroids may be scattered in the Oort Cloud Some interstellar rocks could travel into the inner solar system ...

Alpha Centauri is inching closer, sending space debris toward our solar system. Could it be a source of interstellar ...

The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, and has most recently been popularized in the novel and television show "3 ...