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

Diminutive Barnards Star is closer in size to Jupiter than to the Sun. Only the three stars that make up the Alpha Centauri ...

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

Interstellar materials have been identified in our Solar System, but their origin remains a mystery. A recent study suggests ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

Answer: For near stars, astronomers use a method called parallax. During Earth’s orbit, near stars seem to shift their position against the farther stars. This is called parallax shift. By ...

"The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star ...

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

We aren't talking about "little green men" here, however — more "little (and not so little) gray rocks," asteroids from the triple star system Alpha Centauri. The scientists behind the new ...

A new study led by Western astrophysicists Cole Gregg and Paul Wiegert recommends Alpha Centauri—the next closest solar system to ours—is a great place to start, highlighting how and why it's ...