UFO sightings: NASA expert urges to take alien claims SERIOUSLY - 'There must be life' UFO claims and stories of extraterrestrial visitors to Earth need to be considered without blanket scepticism, a physicist and former NASA researcher has shockingly claimed. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:iPhone sweat? ‘SWEAT’ ID could one day be used for smartphone securityNew Earth DISCOVERED: Ross 128 b could host ALIEN life (or US!)SHOCK CLAIM: Lab created super-mosquitos released into wild could 'make all men infertile'Trilobites: Chimps Tailor Alarms to What Other Chimps KnowHow to Lower Your Blood PressureAt U.N. Climate Conference, Treading Lightly Around the Americans