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

The Milky Way's core will be visible this month and through August. Here's what Tennessee stargazers should know.

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

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

Admire our galaxy’s dramatic galactic core—a sparkly bulge of stars and gas—while summer’s short ‘Milky Way season’ lasts ...

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

The object, a celestial body from another star system, was discovered on Tuesday by the University of Hawaii’s Asteroid ...

The European Space Agency (ESA) said it is monitoring an unidentified object alongside Russia identified only as A11pl3Z as it hurtles at astonishing speed from outside the Milky Way ...

The ultra-rare object is travelling at about 245,000 kilometres an hour and will fly deep into the solar system, skimming past Mars.

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