How Hot Are Black Holes? | Q&A 435

Dr Paul Sutter https://www.pmsutter.com/ 🔴 [Q&A+] No YT ads. Bonus Question. For FREE   / 116942   🟣 [Overtime] Even more Q&A   / 1720060   How can black holes be hot when all they do is suck in everything around them? Why is the Oort cloud so perfectly spherical? How do astronomical measurements work? And in Q&A+, can small Moon impacts be a threat to Earth? 00:00 Intro 00:23 [@MistSoalar] Why is the Oort cloud spherical? 03:09 [@rJaune] Could we detect the Oort Clouds, or Kuiper Belts of exo-systems? 03:45 [@nephilim20111] How hot black holes are? 08:05 [@d.o.6769] What are the various units and how do they relate to each other? 15:24 Dr Paul Sutter 📰 EMAIL NEWSLETTER Read by 70,000 people every Friday. Written by Fraser. No ads. Subscribe for FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://www.universetoday.com/podcast Astronomy Cast: https://www.astronomycast.com/ 📩 CONTACT FRASER [email protected] ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0) You are free to use my work for any purpose you like, just mention me as the source and link back to this video.