Uploaded March 2021 | Updated September 2026, 1 week ago

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Nothing can escape black holes, yet somehow they can lose mass by emitting Hawking radiation?! To understand why, we'll need to combine quantum field theory with general relativity.

00:00 Cold Open
00:33 Incorrect Explanation
02:22 What is a black hole?
03:57 What is a quantum field?
05:15 What do black holes do to quantum fields?
09:23 Black Hole Evaporation
10:56 Summary
11:43 Outro
12:08 Sponsor Message
13:20 Featured Comment

Nick Lucid - Creator/Host/Writer/Editor/Animator
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VIDEO ANNOTATIONS/CARDS

Black Holes Playlist:
youtube.com/playlist?list=PLOVL_fPox2K-zpTeryROTkmzzsMssSMWp

Cosmic Microwave Background:
youtu.be/Js4Oy2CjOtE

What if Venus and Mars switched places?
youtu.be/Mgw-hMZi5eA
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RELATED YOUTUBE VIDEOS

PBS Space Time on Hawking Radiation:
youtu.be/qPKj0YnKANw
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OTHER SOURCES

Hawking Papers:
nature.com/articles/248030a0 (Paywall)
link.springer.com/article/10.1007/BF02345020

Other Papers:
arxiv.org/abs/1511.08221
arxiv.org/abs/gr-qc/0010055
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LINKS TO COMMENTS

youtube.com/watch?v=Mgw-hMZi5eA&lc=UgzXkE71CMF1MERHWI14AaABAg
youtube.com/watch?v=Mgw-hMZi5eA&lc=UgzRJd_k-FkcjBZnYv54AaABAg
youtube.com/watch?v=Mgw-hMZi5eA&lc=UgxtZ6eJN9yRRqKoe6p4AaABAg
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IMAGE CREDITS

Stephen Hawking:
images.nasa.gov/details-200804210008HQ.html

Stellar Nova:
svs.gsfc.nasa.gov/13578

Black Hole Accretion Disk Simulation:
svs.gsfc.nasa.gov/13326

Black Hole Eating:
svs.gsfc.nasa.gov/12005

Sagittarius A*:
eso.org/public/videos/eso1835c

Cosmic Microwave Background Map:
https://sci.esa.int/s/WLGmGdw

Carina Nebula:
images.nasa.gov/details-PIA14444