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

Dubbed 3I/ATLAS, the comet poses no danger to Earth and will remain roughly 150 million miles away as it speeds by.

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

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

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

The comet should be visible by telescope through September, before it gets too close to the sun, and reappear in December on ...

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

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

Researchers have used machine learning to dramatically speed up the processing time when simulating galaxy evolution coupled with supernova explosion. This approach could help us understand the ...

The Associated Press reported Monday that astronomers in Finland have determined that our galaxy has a 50-50 chance of colliding with the neighboring Andromeda within the next 10 billion years.

But during the preproduction of a show titled “Encounters in the Milky Way,” which debuted Monday at the Hayden Planetarium in New York City, a projection on the planetarium’s dome revealed ...