For decades, people who reported UFO sightings have described encounters with mysterious visitors dressed entirely in black. These men often appeared suddenly, asking questions about what the ...

Do aliens exist? Few debates have proved as enduring – or as divisive – as the question of whether there is life beyond Earth ...

Declassified files reveal a 1954 RAAF UFO encounter where radar tracked a mysterious circular object flying 3,600 mph over ...

PHOENIX - An expert is raising concerns after a UFO-reporting app reportedly recorded many mysterious objects near the U.S.; Native American communities are feeling the impact of the ongoing ...

Disclosure may not reveal alien visitors, but it will reveal something equally important: how science, measurement and ...

Explore hidden UFO events from Arizona's rich history, groundbreaking Las Vegas footage near Area 51, and recent alien disclosures in Mexico. This series features fresh interviews, declassified Cold ...

Everything really is bigger - and stranger - in Texas. This year proved the Lone Star State is full of wild surprises after several Texans spotted some rare and unusual encounters with sea creatures ...

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a ...

We chased after the UFO in the car, it came to rest above Bellevue Zoo. The night was crisp and clear.