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.

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

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

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

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

Milky Way viewing is at its best right now, especially if you’re in the southern hemisphere. Here's what to look out for, ...

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 space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

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