British ufologist John Mooner, a staunch alien believer, captured what he believes is a "flying saucer" soaring above a Devon countryside this week. Credit: John Mooner/Pen News A British ...

Adam Carnal, a deputy in Crawford County, Mo., wasn’t sure what he would find when he pulled over a flying saucer on Interstate 44 late last month. The vehicle had committed a lane violation ...

Did America really build a flying saucer? During World War II, the U.S. developed the Vought XF5-U, a bizarre, disc-shaped aircraft meant to change aerial combat. But why didn’t it take off?