The term UFO often makes people think of alien spacecraft, but that is not what the label actually means. Today, U.S. agencies usually use the term UAP, short for unidentified anomalous phenomena, to ...

UFO sightings, alleged alien crash sites and claims of government secrecy have fueled decades of conspiracy theories. The documentary revisits Roswell, where believers claimed an alien spacecraft and ...

Meanwhile, thousands of tourists flock each year to see the lava-filled Santiago crater that gives this imposing volcano its ...