http://www.newsweek.com/nasa-ufo-study-space-race-aliens-signals-russia-china-1725055 > Aliens, extra-terrestrials, or 'little green men'—the idea has various labels, all of which have saturated popular culture for decades and carry with them a whiff, or a heavy dollop, of pseudoscience. > That didn't stop the U.S. government from stirring feverish excitement by holding its first Congressional hearing on UFOs—now officially referred to as unidentified aerial phenomena (UAP)—in decades back in May.