The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not ...

Historically, many scientists and society have been fascinated by the prospect of making contact with extraterrestrial ...

Hawaii’s Gemini North telescope has captured new images of interstellar comet 3I/ATLAS with a green glow as it remerges from ...

When sonar first picked up a massive, stair‑like object on the floor of the Baltic Sea, the image looked less like geology and more like a movie prop. The structure’s circular outline, sharp edges and ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Harvard scientist Avi Loeb claims the interstellar object 3I/ATLAS may be alien technology sent to seed life on Earth, sparking a debate with sceptics who insist it is merely a comet.

The man who claims a comet is an alien spaceship has claimed alien contact with Earth will be confirmed by 2030. Theoretical physicist Avi Loeb has been leading speculation that the so-called 3I/ATLAS ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

If you found out we weren't alone, if someone showed you, proved it to you, would that frighten you? That question sits at ...