Ultra-sensitive telescopes have transformed alien planet-hunting from science fiction into enthralling hard fact. Join NOVA on a visit to exotic worlds orbiting distant suns to answer an age-old ...

EXCLUSIVE: The Discovery networks have picked up two mystery docuseries after striking a deal with Big Media. Greatest Mysteries Ever and Alien Files: Reopened will air on the Warner Bros.

In 2011, a vault of government files were released to the public by the Freedom of Information Act. Among these, the Blue Planet Project, containing thousands of reports on UFO sightings and alien ...

We've compiled a list of streaming and cable services – including rental, purchase, and subscription platforms – along with the availability of "Unsealed: Alien Files" on each platform. Now, before we ...