The Most Extreme Explosion in the Universe

Publicado 2022-11-23
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Sources & further reading:
sites.google.com/view/sources-supernovadeath

Supernovae are the most powerful explosions in the universe, unleashing enough energy to outshine galaxies. We have no real metaphor for their power – if the sun were to magically go supernova it would feel like you were being hit by the energy of a nuclear explosion, every second. For weeks.
While supernovae are the engines of creation, forging the elements that enable life, they also burn sterile whole regions of galaxies. So what would happen if one hit earth?

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Todos los comentarios (21)
  • @kurzgesagt
    Go ‘beyond the nutshell’ at brilliant.org/nutshell by diving deeper into these topics and more with 20% off an annual subscription!
    This video was sponsored by Brilliant. Thanks a lot for the support!
  • @veritasium
    Great video on supernovae! Amazing that we were both working on the same topic at the same time. I hope everyone knows that these videos take months of lead time for both of us so there is no way one video was inspired by the other or vice versa.
  • @jabajoba
    The amount of times humanity could have not existed because of how the galaxy works genuinely blows my mind.
  • @zacharyreed2347
    I love how varied the content on this channel is. One day it's, "Look at this cool ant," the next it's, "Boy wouldn't it be fun if we went extinct?"
  • @cntoesussie5875
    Y'all say some of the most concerning things sometimes, yet stay perfectly calm. Props to the voiceover!
  • One of the best things about this YouTube channel is that it gives science backed information which isn't normally accessible, breaks it down to a level where almost anyone can understand, constantly updates us with new research, and gives it to the public for free. Thank you for what you do, Kurzgesagt
  • @joeburnover4110
    The fact that even some life would survive a supernova 4 light years away is extremely impressive and shows how resilient life is
  • I absolutely love how concepts from other videos were integrated into the vision of the future. The Dyson ring and solar engine were lovely touches.
  • @thewingsoffried-om
    I like the visuals depicting the different stages, so I’m timestamping them.

    Stage 1: Thousands of Light-Years Away 1:44
    Stage 2: 300 Light-Years Away 2:04
    Stage 3: 150 Light-Years Away 3:04
    Stage 4: 100 Light-Years Away 4:26
    Stage 5: 25 Light-Years Away 7:09
    Final Stage: 4 Light-Years Away 7:55
  • What's really fascinating is the fact that we found a layer of increased levels of radioactive iron in the archaeological record and we were able to eliminate any other possibility besides a supernova from 300 light years away.
  • @bmouch1018
    I'm in love with the fact that they've been ending their recent videos on a relatively happy note to combat the existential dread they usually inspire.
  • @clivah1499
    7:05 screenshot is legendary in terms of aesthetics! Very atmospheric, and an incredible illustration!
  • 6:10 Wouldn’t the increased thunderstorms help regenerate the ozone layer? I read somewhere that lightning creates a significant amount of ozone. Unless I’m mistaken.
  • @MrOgone4ek
    the fact that a few hundred light years away is enough to make the night glow is a real show of their power
  • Another amazing video! This channel really has some quality content on it. I always come back to watch whatever the new video is :)
  • Great video as always, love the animation of the stars. And the music going harder while going closer is a brilliant detail. It slaps!
  • @_monolithic_
    I first discovered Kurzgesagt back in 2015 with their videos on nuclear energy. I remember thinking at the time, "Wow, this channel makes some great content. I hope they end up growing and getting more attention." Seven years later, my wish has most certainly been fulfilled.

    For years I've evangelized this channel to my friends and coworkers as the gold standard of educational content, and I still get giddy when a new video comes out. I've purchased dozens of calendars, posters, and journals, and I will happily continue to support this amazing channel. Cheers, Kurzgesagt!
  • @hugo7631
    I’ve been watching this channel since I was 16 and I’m 21 now yet you guys have never disappointed with the animation. Keep up the good work guys! 👍
  • @ghbossplayz7317
    It makes me happy that even if it happens 4 light years away life will still go on