Jim Donegan ✅ · @jimdonegan
1509 followers · 4428 posts · Server mastodon.scotWhat #Supernova Distance Would Trigger A #MassExtinction?
https://www.youtube.com/watch?v=KrRvJUZaswo&ab_channel=PBSSpaceTime
#PBS #SpaceTime #PBSSpaceTime #Astronomy #Astrophysics #Star #Stars #Supernovae #CoreCollapseSupernova #CoreCollapseSupernovae #Betelgeuse #GammaRays #GammaRadiation #MattODowd
#mattodowd #gammaradiation #gammarays #betelgeuse #corecollapsesupernovae #corecollapsesupernova #supernovae #stars #star #astrophysics #astronomy #pbsspacetime #spacetime #pbs #massextinction #supernova