kwj@szmer.info to Science@beehaw.org · 1 year agoWhat Supernova Distance Would Trigger Mass Extinction? | PBS Spacetimewww.youtube.comexternal-linkmessage-square0fedilinkarrow-up11arrow-down10cross-posted to: becomeme[email protected]
arrow-up11arrow-down1external-linkWhat Supernova Distance Would Trigger Mass Extinction? | PBS Spacetimewww.youtube.comkwj@szmer.info to Science@beehaw.org · 1 year agomessage-square0fedilinkcross-posted to: becomeme[email protected]