Defense Secretary Pete Hegseth's face lit up while answering questions about his assignment to identify and release files on UFOs. Here's what he said. (AP Photo) ...

Advances in organ and computer models are raising the prospect that some animal experiments could be eliminated. But there are still huge hurdles to overcome.

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.

With the release, the American public could learn what, if anything, the government has documented about the unexplained ...

A viral Obama podcast answer about aliens prompted Trump to accuse him of revealing secrets and promise to release UFO files ...

Trump has ordered the release of UFO files. The real question isn’t what they contain—it’s how the uncertainty could affect ...

Daphne O. Martschenko and Sam Trejo both want to make the world a better, fairer, more equitable place. But they disagree on whether studying social genomics—elucidating any potential genetic ...

President Trump directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of fascination — and spawned more than a few wild ...