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

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

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 ...

It's the so-called "Milky Way season" in the Northern Hemisphere. Here's everything you need to know about viewing the galaxy ...

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

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

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

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

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

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

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

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