Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Alpha Centauri has long fascinated astronomers as the closest star system to our own. Located just 4.37 light-years away, this stellar trio offers a prime target for hunting exoplanets. Recent ...

Astronomers have discovered over 100 new alien worlds so far this year — some many light-years away from Earth — that ...

Retired NASA agent Joseph Gutheinz dismisses UFO claims, noting interstellar travel would take 70,000 years and suggesting ...

As it happens, there’s a rocky planet, called Proxima Centauri b, orbiting in the habitable zone of Proxima Centauri, a red dwarf that’s the nearest star to our own, about 4.2 light-years, or ...

Although reaching Proxima Centauri, which is over 4 light-years away, would still require travel times of several decades to centuries with current technology, nuclear-powered propulsion ...

Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year.

The sun is unique in that it's the only star in our solar system. Up to 85% of stars have at least one companion star. The sun contains over 99% of the mass of our entire solar system.

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall ...