A NASA probe that had a close encounter with a strange object from another solar system has been declared dead and scientists ...

Scientists at the SETI Institute recently searched for technological signals from 3I/ATLAS, the third interstellar object ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

NASA spacecraft observed the celestial iceball as it swung past Mars last October, venturing within 19 million miles ...

On a single day last November, two spacecraft millions of kilometers apart turned their ultraviolet eyes toward the same ...

The farthest spacecraft from Earth has shut down another instrument in the hopes of buying time for an upgrade that could boost the aging probe’s impressive lifespan.

Observations with the Allen Telescope Array set new limits on possible signals from extraterrestrial transmitters.

NASA on Wednesday released new images of an interstellar comet, just the third visitor ever confirmed from elsewhere in the galaxy, which show the object as a bright point of light surrounded by a ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Nasa is rushing to find a solution to prevent its first interstellar spacecraft from running out of power. Voyager 1, which launched in 1977, suffered a drop in power levels that forced mission ...

NASA's twin Voyager spacecraft are still flying in interstellar space. But their power is dwindling, and it's unclear how much longer they can last.