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

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 ...

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

Interstellar visitor Comet 3I/ATLAS was discovered just a week ago and ever since, astronomers across the world have been ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

The solar wind pushes some of the gas and dust away from the comet, forming those beautiful tails we see. A comet actually ...

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

The full moon won’t be the only celestial sight to seek out in June’s night sky. The strawberry moon will also appear near the center of the Milky Way, according to NASA. The galaxy’s bright center ...