The possibility of extraterrestrial life has fascinated the human imagination since time immemorial. This is a topic that evokes hopes and fears alike in our curious minds. Do Aliens really exist? Would they try to visit Earth, and either befriend or attack us, like often depicted in popular media and countless Hollywood sci-fi movies? The 1940s and 50s were rife with reports of ‘flying saucers’ and inexplicable sightings of ‘unidentified flying objects’ (UFOs). Notable scientists and astronome...