The Most Extreme Explosion in the Universe

Published 2022-11-23
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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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All Comments (21)
  • @kurzgesagt
    Go ‘beyond the nutshell’ at 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!
  • @jabajoba
    The amount of times humanity could have not existed because of how the galaxy works genuinely blows my mind.
  • Honestly, it's bloody impressive that life can shrug off a supernova even as close as that. Life finds a way.
  • @mollyl1542
    The reveal of the two headed snake while talking about how radiation from cosmic rays would increase cancer and mutation rates to a noticeable level gave me goosebumps. So good.
  • @FLXtv
    Just throwing this out there but I'd love to see a series on Quantum computing and especially Time Crystals. Very intriguing
  • @PBJellyBoi
    What I really love about this channel is that when it discusses topics that could destroy earth, they assure the viewers that what they’ve talked about is extremely unlikely to happen, which probably helps calm down the kids that are scared to death.
  • The best part about Kurzgesagt, apart of course from the beautiful scientific videos, is that they always include music from their previous videos to cite references. For example, at 9:17, they subtly added the OST from their video on stellar engine made 2 years ago where they talked about how to move the solar system out of harm's way.
  • 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
  • @user-zp3fe8im3i
    Hello, I love the videos you do on space, it would be great if one of your next videos talked about the aquaponics system and its use in space missions. 😄
  • @ronaknikam4610
    Our position in the universe like we are not close to anything dangerous and the perfect condition for life to exist just blows my mind
  • @Val44w
    This video helped me understand life being created or extinct. Thank you❤️
  • This is a remarkable video. Could you please tell me how you did the animation?
  • 20 millions, it's gradually coming. You've deserved this guys, I've fallen in love with everything you propose and prepare. Thank you for bringing such an extraterrestrial content, love u
  • The fact that even some life would survive a supernova 4 light years away is extremely impressive and shows how resilient life is
  • @jimysk8er
    Could you offer some clarification on the range of "Radiation" you reference? I am assuming from the symbolism that you mean the part of the spectrum that we associate with isotope like uranium and plutonium. It would be interesting to know what sort of effects that may present such as, I've heard, that radioactive isotopes can feel very warm and certain concentrations without reaching boiling temperatures. (also that this means it's likely doing a lot of damage to cells)
  • @soniasway2841
    the fact that a few hundred light years away is enough to make the night glow is a real show of their power
  • @jimysk8er
    Never have I learned something from the first word in a video until now!!! Thank you for the plural form of supernova!
  • 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!
  • @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.