The search for intelligent alien life goes far beyond listening for simple radio signals. This documentary explores how ...

Originally built as early as 4000 years ago, this structure is just one of a larger network in the Salisbury Plain that ancient astronaut theorists believe are more than just ritual sites in this clip ...

What if some stars we see host alien megastructures? Scientists suggest cooler stars might be surrounded by giant Dyson ...

Red and white dwarfs may turn out to be the most promising objects for searching for hypothetical Dyson spheres, systems ...

New Pentagon files reveal a massive two-tiered UFO seen near a Texas nuclear weapons facility, described by a veteran aviator ...

Luis Elizondo claims unreleased photographs show giant monoliths on the moon. These intriguing images are expected to be made ...

Tau is in sight.