In 2016, astronomers published a study suggesting a ninth planet could be hiding on the edge of our Solar System. Eight years later, they're still looking for it. So what will it take to find it?
Oxford Univ, Breakthrough Prize Hunt for Extraterrestrial Life miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
University of Oxford partners with Breakthrough Prize Foundation in search for life beyond Earth ox.ac.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from ox.ac.uk Daily Mail and Mail on Sunday newspapers.