When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

NASA sparked a wave of chatter after an astronaut shared an image of what many users quickly dubbed an "alien space egg" floating aboard the International Space Station-before revealing it was ...

Uncover the mysteries of the cosmos with the latest news on celestial events and space exploration. Learn about our universe ...