Standing on Proxima b would be unlike anything we’ve ever experienced. Just 4.24 light-years away, this exoplanet orbits the ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Dennis Mammana Stargazers We live in a world defined by inches, feet and miles (or centimeters, meters and kilometers, if you prefer), and it’s not difficult for most of us to comprehend sizes and ...

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

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

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

The newest visitor is 416 million miles from the sun, out near Jupiter, and heading this way at a blistering 37 miles per ...

NASA has discovered 3I/ATLAS, only the third known interstellar object, now passing through our solar system from the ...

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