Samantha RolfeLecturer in Astrobiology and Principal Technical Officer at Bayfordbury Observatory, University of Hertfordshire Could Invisible Aliens Really Exist Among Us? Opinion An astrobiologist explains how alien life could exist and we wouldn't notice it. Opinion Could Elon Musk's Starship Threaten Alien Life? Opinion Elon Musk's bold plan to send a crewed Starship to Mars and beyond has potential dire consequences for alien life. By Samantha Rolfe Published 3 October 19 Opinion
