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 ...

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

Dark matter is one of Nature’s most confounding mysteries. It keeps particle physicists up at night and cosmologists glued to their supercomputer simulations. We know it’s real because its mass ...

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 ...

A collision between our Milky Way galaxy and its largest neighbor, the Andromeda galaxy, predicted to occur in about 4.5 billion years, has been anticipated by astronomers since 1912. But new ...

Our Milky Way galaxy is a cannibal.. It has grown by consuming other galaxies.Yet, it too, may be destined to collide and merge with an even bigger galaxy: Andromeda.Though galaxy collisions are ...

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.

The Buck Moon charges into the night sky very soon. Here's when and what time you can spot it shining its brightest in ...

There’s now a 50-50 chance this galaxy will crash into ours. Astronomers have long thought that the Milky Way is headed for an inevitable crash with its neighbor, Andromeda.