US military space plane wings past 500 days on latest mystery mission
The robotic drone is performing classified duties during the program’s fifth flight
Top-Secret UFO program revealed in TV’s “Project Blue Book” (photos)
During that time, experts investigated more than 12,000 reports of UFO sightings, of which over 700 remain unexplained, according to records in the National Archives
Ancient, unknown strain of Plague found in 5.000-year-old tomb in Sweden
The researchers discovered the previously unknown strain of plague in the remains of a woman at the Frälsegården site
