Landmark UFO documents smuggled out of Russia 30 years ago — and just publicly revealed — show the Soviets investigated ...

Stolen Soviet files released by George Knapp reveal a massive cover-up of UFO encounters, giant aliens, and abductions ...

Recently revealed documents, smuggled out of Russia, disclose the Soviets' extensive investigations into thousands of ...

An interstellar comet that sparked speculation about extraterrestrial visitors has departed the solar system after making its closest approach to Earth at 270 million kilometres on December 19, with ...

Claims that the world's biggest military powers are secretly hoarding alien technology have surged back into the spotlight.