Ten-Year-Old Is Youngest Ever to Discover Supernova Max Read · 01/04/11 02:02AM Kathryn Aurora Gray, a Canadian 10-year-old, just became the youngest-ever person to discover a supernova after spotting one in galaxy UGC 3378 while looking with her dad. So? When I was 10 I discovered late-night Cinemax. Where's my medal?