Sii wad qoraalka sadarkan- sheegashada la xidhiidha aragtiyaha shirqoolka ee UFO, afduubyada shisheeyaha, dhacdada Roswell
iyo dhacdooyinka kaynta Rendlesham, ee panspermia, iyo sahaminta hawada sare ee aadanaha ayaa si muuqata uga muuqda dhacdooyin badan waxaana lagu baaray macnaha guud ee cosmology-astronauts-kii hore.