Uploaded June 2026 | Updated September 2026, 3 weeks ago
Dr Paul Sutter pmsutter.com
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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
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You are free to use my work for any purpose you like, just mention me as the source and link back to this video.
Dr Paul Sutter pmsutter.com
🔴 [Q&A+] No YT ads. Bonus Question. For FREE
patreon.com/collection/116942
🟣 [Overtime] Even more Q&A
patreon.com/collection/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: universetoday.com/newsletter
🎧 PODCASTS
Universe Today: universetoday.com/podcast
Astronomy Cast: astronomycast.com
📩 CONTACT FRASER
frasercain@gmail.com
⚖️ 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.
![Solar Gravitational Lens Launch Date? [Q&A Livestream]](https://i.ytimg.com/vi/yUqB8vkD4cE/mqdefault.jpg "Solar Gravitational Lens Launch Date? [Q&A Livestream]
Join Fraser for a live questions and answer session about all things space and astronomy
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⚖️ LICENSE
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You are free to use my work for any purpose you like, just mention me as the source and link back to this video.")
