The Trump administration on Friday released its fourth batch of never-before-seen UFO files, shedding new light on ...

Former NASA official Michael Gold says decades of stigma around UFOs left the US lagging on UAP research and warns rivals ...

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

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

Harvard astrophysicist Avi Loeb, known for his controversial extraterrestrial theories, is now leading a new Trump ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

Katalyst Space’s LINK spacecraft will launch from an airplane in the Marshall Islands to boost NASA’s Swift Observatory, which is dangerously close to burning up.

There is something almost offensive about a sky so full of stars and so empty of company. That is what gives Richard Feynman's quote its sting: "There is a silence in the night sky that has bothered ...

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

The latest batch of files includes videos showing artistic recreations of sightings of unexplained orbs. The witnesses in the sightings are described as “highly credible” and include federal law ...