[Interview+] Supernova Remnants Should Fade Away. So, Why are Some Flashing?

👉 More interview HERE: https://www.patreon.com/collection/44300 BONUS PART STARTS AT 34:06 Watch here (with no ads) or on YouTube: https://youtu.be/XWz1mElwO-I Supernova remnants should be stable. All the action is long gone. But newly found supernovae in M87 unexpectedly show signs of rapid change. Why does this happen? Nobody really nows yet. 🟣 Guest: Dr. Roy Kilgard https://rkilgard.faculty.wesleyan.edu/ 📜 NASA's Chandra Finds Unexpected Fireworks in Aftermath of Stellar Explosions https://chandra.si.edu/press/26_releases/press_061526.html 00:00 Intro 01:56 Dynamic supernovae 08:28 What's going on there? 20:11 How can we resolve this mystery 22:08 X-ray binaries 24:24 Demarkation of compact objects 29:17 Neutron stars becoming black holes 34:06 Light pollution 43:53 Current obsessions 51:25 Final thoughts