At nearly twice Earth's size with a denser atmosphere, this fictional world hosts creatures that dwarf anything alive today, ...

On July 16, 2024, a daytime meteor shook New York City with a sonic boom as it passed just south of the Statue of Liberty.

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Yuki Ikeda's four-year manga series launched its anime adaptation on Netflix worldwide today, and the premise hiding behind its cute-vs-gritty visual contrast turns out to rest on a coherent argument ...

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously large black holes” might be used by alien civilisations, and what makes the ...

Morgan McFall-Johnsen was a science reporter at Business Insider. She covered climate change, weather, Earth sciences, and ...

Professor Carol Oliver suggests that time dilation, a cosmic phenomenon, may deter aliens from visiting Earth, as ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

From Nevada’s Area 51 mythology to McMinnville, Oregon’s UFO Fest, alien lore continues to turn curiosity, conspiracy, and ...

Researchers have a responsibility to search for consensus on this crucial issue, both for future generations and the future of our planet.

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...