Scientists have been working on ways to find new worlds far from Earth, and this strange method theorized decades ago has ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

Scientists believe the Milky Way contains up to 400 billion stars and at least as many planets. The largest galaxy known, IC 1101, has more than 100 trillion stars. Step outside on a clear night and ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

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

Planets that go rogue orbit no star. They wander the vacuum of space alone, having been kicked out of their star systems by gravitational interactions with other planets and stars. Nobody really knows ...

Astronomers have identified the oldest remains of planets in the Milky Way. And, they are relatively nearby, just 90 light-years from Earth.

(CNN) – Astronomers have discovered a rare family of six planets about 100 light years from Earth. The exo-planets are larger than the Earth but smaller than Neptune. The planets are in a ...

Because of this, the astronomers say this may be the oldest planetary system around a white dwarf discovered in the Milky Way. As for the red color, Elms and the team had a theory. “It is extremely ...

WASHINGTON - Scientists have estimated the first cosmic census of planets in our galaxy, and the numbers are astronomical: at least 50 billion planets in the Milky Way.

LOS ANGELES - The Milky Way is home to at least 17 billion planets that are similar in size to Earth, a new estimate suggests. That's more than two Earth-size ...