The Most Extreme Explosion in the Universe
Sources & further reading:
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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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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.
We're familiar with Zeitgeist thanks Endless notifications.. dear God what have I done
Ohhhhhhhhhhhhhhh, I thought the information in this video was from a previous Kurgz video, but now I remember, the video was yours. Thank you!!
eh, what a timing. well complemented 👍
Tu eres el maestro longaniza
Yu also make a vedio on this topic
The amount of times humanity could have not existed because of how the galaxy works genuinely blows my mind.
And how many times Humanity should of end shows how capable we are as well how we are fragile and could end quickly The universe is a great and cruel world
@Curiosity the ice age and the last human episode and super volcano I was talking about
@@fismail4330 ''cruel'' is a human made conception. The universe is just the universe.
@@higorss Just because something is a human made conception doesnt mean it cant apply to things that arent human.
The Great Filter is probably the strongest reason we have yet to contact intelligent life. Anyone with the tech to reach out and give us a call, probably has the same tech to destroy all life on their planet, like we do. The improbability of our existence is quite large.
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?"
And then a deep talk about depression.
@@LennoxParsec and then the fact you have a high chance of getting a auto immune disease in your life time
And who could forget about that giant star that probably never existed?
and also “lol imagine if you turned very small”
ahahahha indeed!
Y'all say some of the most concerning things sometimes, yet stay perfectly calm. Props to the voiceover!
Your pfp scares me
@@DrowsyFellow good :)
You know you stand zero chance of being affected by a supernova - right? That was the whole point of this video. If it scares you, then you can't calculate/perceive risk correctly.
Should we call your profile picture Grerby or Kirg?
@@ChadtuvaQueen Either or is fine
One of the best things about this KZhead 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
E
SciShow has been doing this for years too though.
"One of the best things about this KZhead channel is that it gives science backed information" - quoted from you. I would argue that is the most dangerous part of this channel. One mistake and it could become law, by accident, with no possible way of going back.
@@danielduncan6806 That's why they have a lot of different sources and they work with scientists and experts
Ikr, I can name atleast 20 channels that give you good scientific information!
The fact that even some life would survive a supernova 4 light years away is extremely impressive and shows how resilient life is
It's probably going to be cockroaches.
well if earth turn into venus life will not survive long
Tardigrades may be a virtually-useless waste of organic compounds but goddamn are they our last hope in the event the universe decides to hit the delete button.
@@GeneGear Tardigrades: chilling False vacuum: *h e l l o t h e r e* Tardigrades: still there False vacuum: _wait what in the f_
@@_Killkor there is a difference between hitting "delete" and the "power" button
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.
288 likes and no reply.let me fix this
@@littlestar7458SHUT UP
The poor birds in these videos. They either get blown up, melted, disintegrated, stabbed, frozen...
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.
well... there are alternatives ... but you don't want to think that a civilization advanced to the nuclear age and then killed itself. or a space civilization bombed this world for some unknow reason .
@@unknow11712 Wrong, I want to, but it wouldn't be very reasonable without further evidence :x
The only other possibility that was eliminated was a solar storm, based on the solar maximums, but it’s still possible that the sun did it, just extremely unlikely. Also other solar storms that we know of haven’t caused this effect, which means if a solar storm did do it, it was unbelievably massive.
Nothing in the solar system makes Iron-60. The sun isn't massive enough, and humans can't make it because it requires energy input from either direction, fission or fusion. Also amazing to think about, is the Iron-60 was made in the supernova...and traveled the 300 light years to earth, and arrived in enough quantity to be detectable. Also, any element heavier than Iron is only made in supernovas as well, because of the energy input required for Iron.
The reason they could figure that out is the particular _kind_ of radioactive iron that was found - iron-60. It's only produced by supernovae, and yet it's never found on Earth in mines and the like, as with its "mere" 2.6 mil years half-life, all of it would have decayed away (to cobalt-60) since the formation of the planet.
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.
Watch the one about...
I’m a bit unhappy that we will have to move out of the way just because a star goes supernova. We need to build a Dyson Sphere.
@@MarcosElMalo2 and to do that, we'll probably need space tethers!
@@MarcosElMalo2 Your great-grandchildren will die of old age at 160yo long before this is ever a consideration.
@@WhatIsSanity That’s not the point. The point is that supernovae can’t tell me what to do.
This would be horrible for the trout population
Well he's not wrong
Agreed.
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
Thanks! 🎉
You guys are absolutely phenomenal
Interesant placut
@@vasilemariangiarap7005 Is that Romanian?
Thumbs up
Eres maestro longaniza del profesor Jirafales
Wow
the fact that a few hundred light years away is enough to make the night glow is a real show of their power
Very bright but, ohio has been through worst
ok
Hi, if you are not saved, and would like to be included in the rapture of the church. Believe that Jesus's death on the cross, was enough to pay for ALL your sins , yes ALL ,(past, present and future) That is what the Gospel is about. We are saved by GOD'S amazing grace, through our faith in Jesus's sinless life, death on the cross and resurrection 3 days later . No additional works needed. It is literally that simple. Ephesians 2:8-9 Romans 10:9-10 Romans 4:5
@@Jona7Fer jesus sounds like some bloke
@@sambrads8728 That “bloke” sacrificed His life to save yours. Do you not see the battle between Good & Evil going on before your very eyes?
7:05 screenshot is legendary in terms of aesthetics! Very atmospheric, and an incredible illustration!
"Schools will remain open"💀
Honestly, it's bloody impressive that life can shrug off a supernova even as close as that. Life finds a way.
*they didnt shrug it off
@@yeetusdeletus8254 bro animal life survived. Thats more complex life than the first 3 billion years of life on Earth. I mean as in life survived, not only survived but survived in very complex forms. Like apparently there'd still be insects, fish, crustaceans, plants, fungi, anything else deep in water or soil. Very complex organisms. Not just single celled organisms. It is impressive how much life (even complex life) can shrug off without dying out entirely.
Of course the beginning of the universe is a theory, and not a scientific fact, that was failed to be mentioned here.
@@andrescavada563 how's that relevant at all to what I said, if ur referring to wether the big bang happened or not, maths doesn't lie.
@@andrescavada563 almost everything is a "theory" there are no "scientific facts"
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!
@@Custom_Tech_Solutions man im de-
@Joseph Carrino dude i got a burn right after reading this
I discovered this channel when my teacher gave a video from this channel for an assignment in 2020 and I've been watching Kurzgesagt ever since.
They're almost at 20 million subs. Great Job K-Team!!
the information kurzgesagt provides shouldn't be taken as facts anymore. look up "How Kurzgesagt Cooks Propaganda For Billionaires" video...
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.
This needs to be pinned!
Absolutely, but it's no good if the conditions that destroyed the ozone layer continue to exist. Earth would become a nitrous oxide factory because the supernova radiation is still battering the upper atmosphere.
@@thehochmaster2 Will animals that can use nitrous oxide evolve? A mass extinction event was caused by oxygen in the atmosphere, and now, we need oxygen!
@@Anonymous-df8it maybe, but I think it's unlikely very many exist. Back then, oxygen-consuming life existed. It just couldn't proliferate until algae changed the earth's atmosphere. First we need to find a N2O consuming creature. That's hard too; that N-N molecular bond is strong as hell. Not a lot will convince 2 nitrogen atoms to split. NO2, that's a different story.
@@thehochmaster2 Why would it need to break it apart? I don't think we break up O2 into two oxygen atoms as humans can't actually use oxygen of that form (where they're individual atoms, not bound up)
It makes me happy that even if it happens 4 light years away life will still go on
These videos are TV quality, yet you produce these and offer them to us for free -- not on one channel, but on multiple channels, most of which required translations -- all for free. I respect you. You guys are one of the channels that make KZhead. (DISCLAIMER BELOW, because there's a lot of debate in the replies.) A lot of people have taken "TV quality", to mean bad. However, I want to make it clear that I didn't mean the comment as an insult, but as a compliment. It is also important to note that I did mean streaming services, such as Netflix, not cable. Though I spend virtually no time watching either, this comment meant more so that this is quality content, that I could see becoming official rather than a KZhead operation. Don't get me wrong, I enjoy KZhead and consistently watch it, but you also have to remember that some KZhead channels (such as this one) are more... polished, than others, especially considering that this is the same platform that has the family vloggers, and "DON'T CALL AT 3 AM!!! 😲😲" videos.
RUN FOR YOUR LIFE
@@centralkaufci why ?
This video was uploaded to the German Kurzgesagt channel yesterday sporting the funk label. Funk is part of the content netzwork of ARD and ZDF, which are two German public television channels. German public broadcasting is funded by the 'Rundfunkbeitrag', which is a tax that's legally not actually a tax but binding all the same. In short, Kurzgesagt videos are partly funded by German public television.
@@Steamrick damn that's cool i didn't know that. its good to know that the german government is actually doing useful with tax money instead of wasting it in useless ways lol
@@anustubhmishra It's not actually tax money, it's citizens' money taken in by a private organization for public use. Despite that, it's not optional and people have gone to prison for refusing to pay. It's... a rather controversial topic. That said, Kurzgesagt is one of the best uses the money could be seeing.
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! 👍
E
Now that I think of it, I'm also watching since I was 16 and I'm 21 now.
Same but since i was 14 now im 22 💪😎👍
I am currently 16 and hopefully I will still be watching when I’m 21
Wow you make me feel young
“The radiation and mutation rate would not be enough to cause a mass extinction…” *shows peaceful animals in a jungle landscape* “…but it will be noticeable.” *snake casually reveals it has two heads*
6:54 Damn Earth's lookin like the post-apocalyptic future in Chrono Trigger. 9:17 The view of space being revealed as a reflection in a pond is stunning visual.
Honest to god Kursgesagt is one of the greatest educating channels out there. With the quick release time of videos and the stellar visuals, it is probably the /best/ of them. Kudos to the Kursgesagt team who give us all the high quality work!
Imagine watching this on PBS Kids back then instant classic, if not already.
who asked?
@@dinogt8477 I asked
@@dinogt8477 I asked after your mama but her little red diary is full
Capital G on the God
People don’t appreciate just how beautiful some of the art in these videos is. The style works so well with space themed videos.
Exactly
I love that it is consistent, it became Kurzgesagt's signature
The magnetosphere from the supernova was sick fam!
Not some. ALL the art.
True, I really love all Kurzgesagt videos
"We don't have a metaphor for this power." Proceeds to give a metaphor for this power. Never change.
2:30 im sorry this was literally so adorable the narration with the timing of the art was too kuch for me. Please keep up the great work!
This makes me wonder how many solar systems this actually happens to every time there is a supernova.
between one, and four. Space is big. In the core, the number is higher, but it's still under a hundred.
@@gwouru And due to how short the lives stars big enough to generate type 2 supernovae are, a large portion of those happen near their sibling solar systems from the same nebula, meaning they're not all that much older, and thus haven't had time for life to develop in the first place.
I watch these videos and scared, especially since our ozone layer has gotten weaker since humans began polluting the atmosphere with toxic chemicals. Or the fact these these random events can happen at any moment and could just wipe out our planet…. or galaxy.
@@maximusothunderman Technically our ozone layer is getting so much "stronger" with the pollution that it traps "heat" enough to become it's own power core. Anyway if that's what you're primarily afraid of then your life must be peaceful because random events like these have so little probability of happening in our lifetime and even less to actually impact us that it's actually the least dangerous thing that can exist for us out there. Of course it's different if we look at it in a civilization of species scale as it will for sure happen one day but that's a problem for my grandson's grandson's grandson's grandson's...
@@mynamesbigmynamesbigmyname4757 true. Well at first it was a black hole as something I was worried about. But yeah that problem might not happen for another dozen generations or so.
Love how the stellar engines soundstrack start to play when the solar system is moved at 9:16
It's incredible that an educational youtube channel has recognizable leitmotifs. It's a testament to how much effort they have put into their videos over the years.
This channel has the best music(imo) out of the other educational channels
you should check out epic mountain music! they compose all of the music for kurzgesagt and you can listen to the soundtracks on their channel.
Really loved that touch 🤌🏻
It’s nice to see them not forget about the other videos
This is such a great channel. I often forget the channel exists between uploads, and then I'm so happy to remember it that I just binge a bunch of old videos.
Great video as always, love the animation of the stars. And the music going harder while going closer is a brilliant detail. It slaps!
The thing about these videos is they're entertaining, educational, and sometimes tugs at your emotions. Kurzgesagt really is one of the kind.
Another amazing video! This channel really has some quality content on it. I always come back to watch whatever the new video is :)
This shows how we're still under the whims of nature. We live if it wants us to live, we die if it wants us to die. We can never do anything againts it.
Imaging humanity a 10 million years from now (if we survive) is just mind blowing. If we make it that far, we will probably be all over the known universe and be present in millions of planets.
I really hope we can at least get somewhere before the universe eventually dies, it will take so many years of course. Yet, its not as far as we think it is. At least, I hope we leave our mark before we all go into our restfull sleep.
Even if we can invent FTL tech, we will only ever be able to visit a tiny, tiny part of the universe as (covered in another Kurzgesagt video: "TRUE Limits Of Humanity - The Final Border We Will Never Cross") everything outside our local group is expanding away from us faster than or fast as the speed of light. As mentioned in the above video, 94% of the known universe is already gone beyond the veil
Don't worry I'm gonna kill us all before that happens 👍
@@Oshroth Didn't that video contain an inaccuracy?
@@Anonymous-df8it that was the original video
The thing I love about kurzesagt is just how much time they put into researching, animating and just doing an all round great job at making their videos enjoyable and informative to watch. Brilliant stuff.
I totally agree with you. I am so happy to watch them
go away
@@deutschmitpurple2918 proud to be deutsch?
@@thorodinson6649 Stolz darauf, dass Englisch die beste Sprache ist? Eifersüchtig viel?
Lol
You guys are making science and space and other topics look very interesting to learn and very fun!
yeah its exactly like jurrassic park 3 love it so much
i know jp3 isnt the most scientific but it still gets you excited about the saurs
@@YellowTissueBox True.
This video has the best explanation for the supernovae 😊 Thank you guys! Always looking forward for more learnings through your videos. 🤗
I love these videos, they show us how horribly humanity can perish and then end with a "no worry this won't happen for the next billion years" seems weird, but it always fuels me with inspiration
I mean if you think about it life has had all this time to evolve without being entirely wiped out, what are the chances for that to happen right now in our short lives?
@@OmniversalInsect Some things we are uniquely vulnerable to, but the rest of life isn't. The most obvious example is a human centric disease, however for a more cosmic example consider a powerful coronal mass ejection that is aimed at us. Our modern electronic society would be very negatively affected by that, while the rest of life would just see a pretty light show further south than they usually appear. And in fact we've seen such a thing quite recently - look up the Carrington event.
dont worry supernova is instant, it is like if you eat nuke, it is instant 😊
In 2018, while looking through my telescope I saw this star that suddenly flashed and then went out. I think it was a supernova.
@@vkobevk Only if it's very close by. A more distant, but still close enough to be dangerous, supernova would not instantly fry the planet, as the video explains. It could even last for centuries, as the waves of radiation steadily degrade our environment.
3 questions: - how long has it been that humans have had this information for? - how does or should our evolution change now that we have this information? - is it worrying or not too important that humans evolved up to now pretty much without this level of understanding? Thanks so much for this video and for basically changing my entire worldview with all of your video content😆 💞
if a supernova hits earth, i'd simply just intervene
It’s Bionic!
Doni is gonna make a supernova on the server
Bro thinks he’s Kevin
hi bionic chan
I bet you're gonna make a "Minecraft but it's supernova" Modded letsplay at some point too considering the large volume of content you put out.
9:04 "Just Vibing" 🤣
Your new intro is amazing! Thanks for the awesome videos, guys!
"me hearing that I'm safe" Yippee 😁 "But somewhere in the far future-" ☠️
I’ve always thought of a supernova hitting the earth, and this video explains it so incredibly well! Such an interesting concept.
RUN FOR YOUR LIFE
interesting concept...everyone dies
Technically it is not hitting the Earth...
Very interesting! And completely mind-boggling and totally terrifying that these things exist out there in the deep dark of space 😨
@@multiarray2320 yep, basically!
I watched pretty much every video in this channel and the animation improvement is insane while still preserving the style, you guys r amazing
I had no idea that the mass exctinctions in the past may have been tied to the supernovae. Very interesting and wonderfully presented as always.
“If it dosent happen in my lifetime, its not a threat”
This channel is one of the best things that has happened to humanity since the emergence of the internet.
search "How Kurzgesagt Cooks Propaganda For Billionaires"
@@AtomiXGeeK man what
@@AtomiXGeeK "translate to English"
@@AtomiXGeeK search "something something Covid-19 something something Heavenly Energies"
Thanks Kurzgesagt for putting yet another one of my fears to rest. There are so many things we know about these days that sound almost unfathomable in their depth of potential damage. Instead of floating around in my head as another "what if?" scenario, this fear is finally able to shut up. This channel has done so much good for my anxiety, I really can't say thank you enough.
I mean even if one could be close, why worry about everyone being annihilated instantly? No one would even know it happened
@@jjcoola998 Did you watch the video? Yes, one that is REALLY close would kill us all instantly, but a bit further and it could be a slow and painful death. From cancer, starvation, freezing to death, etc etc
Cool
I really do like that transition from the analogy to the suns effects on the Earth from about ~3 million light years away with the beach one and then in the next paragraph, the animation goes underneath the water of the beach into the beautiful depictions of the coral reefs to talk about how scientists are able to understand that Earth a long time ago was hit by some super novae remnants and that caused some radio active minerals (rocks) to form on or underneath the sea beds.
Vibing to the music in this, never been so nice to get hit by a supernova. Surprised to learn there’s no games or books about surviving a near supernova.
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.
Of course the beginning of the universe is a theory, and not a scientific fact, that was failed to be mentioned here.
@@andrescavada563 that isn't even relevant to the video
the hydra is real
This is probably the best science channel on KZhead. You’ve made me discover my love of microbiology with Immune, and I’ve learned so much about space with you guys. I love this channel, keep it up!
PBS Space Time
@@silviavalentine3812 CGP Grey
Your animations are just getting better and better!
For anyone who wants to dwelve deeper, the mechanism that accelerates particles inside the travelling supernova remnant is called (1st and 2nd order) Fermi acceleration!
1:06 I'm sorry but the bird's expression is killing me😂
Ew a woman 🤢
Well sh-
3:03 yoooo the Kurzgesagt music goin *HARD.*
Science and the universe are something too sublime for me. Thank you for letting ignorant people like me see more of the universe. I really like this channel
I liked the mix of the stellar engine theme at the end of the video, very nice touch.
When the narrator said, "In any case, you can sleep well tonight, under the beautiful night sky", I had no choice but to look up and admire the sentence, and a smile lit up my face. This is what Kurzgesact does, time and time again, and it just never fails to remind and impress.
6:45 "We would face food shortages, skyrocketing prices, and wars" Oh, were we hit by a supernova this year?
Wheres the radiation its coming later isnt it
@@aligntech250now coming in the newest Russia vs Ukraine update
You have made me love science not gonna lie, now I have been writing about space science and working harder in science in school, great video 👍
I love that the backing track is an absolute techno-bop that gets more intense as things get worse
This is almost half the video from Veritasium on Supernovas still it is extremely well-grounded to be understood by almost anyone. Amazing work as always Kurzgegast 👏
Coincidence 🗿
yeah seems like a pretty blatant ripoff
@@jake4000 Not really possible to rip off when video like this takes months to create.
My thoughts exactly
@@XanGious would take a lot less than months if you have most the video and information already made and copied
you guys make me wanna live, and maybe change the world for the better
no ikr?? like i dont usually feel this way and interestingly enough, they do it while telling us very alarming things
The best you can do to make the world better is to live your own life as well as you can, contribute to your community where you can, and not blindly follow others when it's the wrong thing to do, even if it's the popular thing to do. You don't have to be a superhero, just do the best you can realistically do. When people try to take on too much or set their goals too high for the world, they often end up doing nothing, nothing that makes a difference, or just complain and get angry or depressed.
be careful not to choke on your aspirations.
Forget distance even, any star that goes supernova that is further than 100 light-years away will most likely still explode outside of your lifetime. You are 100% safe, don't be scared of the media. Instead of focusing on imaginary threats, focus on what you love because you are awesome
By the time it does explode we will probably have technology to stop it
The stellar engine music coming back at the ending is pure gold 👍
I love the subtle change in music as the video goes on. Also, I love how you're well aware of the existential dread you can impart on others, but how you can use science to dissuade that dread too.
6:01 taxes here I come😂😂😂😂😂
Lol was looking for this comment
taxes here i come AAAAHHH
this asshole fish decided to walk out of the water one day and now i have to go to work and pay rent
To have something new to be feared of is the best of this channel, I love being scared of the universe sometimes
it's so cool to see the consistency of science by comparing the most recent video on veritasium and this channel, that by coincidence both happen to be about this subject, and because science is the same across the world they both feature the same information.
was searching for someone mentioning it
yeah "coincidence" lmao
@@Amin25203 why sarcasm? You think they stole it and animated it in 8 days? xd
@@yumeyuki1944 No but clearly someone is giving these guys subjects in advance or the all communicate about what they are working on because this happens a lot
@@peterw1534 idk it seems like it’s just based on what topics are popular at the time and/or any new info coming out
As an Astrophysicist, I am so morbidly curious to see a Supernovae in our stellar neighbourhood! Chances are, we’d be fine but it’d be a great show!
A teacher?
@@dittocto ahh nope? My literal day job is Research Astrophysicist :) PhD and all
@@sarawebbscience I was wondering then, how accurate was this video according to you?
Me too, as long as the supernova is > 150 LY distance.
@@lightningaxe28 it was excellent! All of their videos are brilliant, so well researched and they do a great job at combining information across sub fields of science too! Like the earth science used to determine mass extinctions which might have been helped along with supernovae :)
So first, this man creates a goddamn entire existencial crisis in myself by pure asking "what if a big boom hits you?" then proceeds to say i shouldn't be worried because i would be dead when that happens. Truly Kurzgesagt experience, love all of you guys.
Somehow this guy can talk about my science class topics that I don’t care about and still make it hellla interesting
I really love how Kurzgesagt always presents me a terrifying scenario that makes me feel hopeless but, by the end, they comfort me and give more to hope for!
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
For a second I thought you were talking about a supernova headed to earth xD
@@redbirb I've just done that same thing :')
Fascinated by the idea that some supernovas wouldn't harm earth much but would make space travel impossible for thousands of years.
Only based on current technologies (largely relating to radiation shielding). Since light from a supernova travels at 10x the speed of the radiation, we'd likely have many centuries after detecting the supernova to prepare. At 100 light-years, for instance, it'd be another 900 years after detecting the supernova before the radiation actually reached our solar system. That's a *long* time for technology to advance and preparations to be made.
It’s a bit morbid, but the fact that any life can survive and recover from a super nova 4 light years away is inspiring in a weird way.
It’s… worth noting that life probably wouldn’t have time to get anywhere near back to where we are now. While 'the sun has five billion years left' is a true statement, it’s also heating up continuously (and the concentration of carbon dioxide is dropping)- in 800-900 million years, photosynthesis will simply cease to be possible. Even as soon as 500 million years will have increasingly harsh conditions. The highest estimate is 1.2 billion years before anything more complex than single-celled organisms goes extinct.
This channel never fails to give me the most existential dread while also being interesting and informative
I can't believe people get existential dread after so good Kurzgesagt videos but do not get existential dread after watching something actually depressing KZhead videos...
This channel never fails to give me the most existential dead. Enough
@@sebase6702 But why??
@@WikiNieWiki because the channel never fails to give us the most existential dread
@@lev12315 It always fails.
I love the amount of awe you can stuff into those little birds. More pessimistically, there's no point in worrying if a star could immediately go supernova within 4 lightyears of us anyways. What could anyone even do?
Well, tell it to stop, first of all
Tell it, no thank you, actually we’re all set here
There's not even any stars under 4 light years away from earth. As the video points out all possible stars that could go supernova are far enough away that they don't pose much or any threat to life on earth so we're safe.
"No thank you, we don't want anymore visitors, well-wishers, or distant radiations"
@@error_found isn’t the Sun close to Earth?
first i was scared of space and black holes and all that stuff but yall helpen me understand it and i kinda wanna learn more
I love how some concepts from previous videos have their own theme songs now. At 9:15, you can hear the theme from the stellar engine video. I love it!
It’s a nice touch!
One of my favorite kurzgesagt themes
7:29 VIDEO : " We're All Gonna Die " MUSIC : " *PARTYYYYY HAAAAARRRRDDD !!!* "
I love you guys. Most of your videos dumb down the science to a point that most can grasp the concept. Me being one that needs big words dumbed down, I appreciate it.
The fact such explosions can still affect Earth at such immense distances really boggles my mind on how powerful supernovas are.
7:53 When he said "Human extinction is all but likely", I just could not comprehend anything after that; I just froze. Kurzgesagt has made a lot of exixtential crisis videos, but this one has been the most impactful ones.
3:19 kurzgesagt's music drops so hard a star explodes
I think the single most important thing we can do to progress as a civilization would be to find a way to protect our bodies from radiation damage at a cellular level
The animation is just amazing! I love this channel so much!
This sort of answers some questions I had about 2009's Star Trek movie. Thanks!
Sounds like a great idea for a game. Instead of nukes in Fallout, it could be a supernova in "Nova".
dude supernova's is just doomguy on a galactic scale
@@yeetusdeletus8254 more like Duke Nukem because it nukes it's region of the galaxy
Good job on the vids thank you for all the topics and lessons you guys have teached us it really helped mealot and ireally apreaciate the hard work on the animations 👍👍👍
I don’t even need to think about it once, this is my favorite Channel.
0:07 “We have no real metaphor for their power.” _immediately states a metaphor for their power_
9:12 -- nice throwback to the star engine bit you guys had in an episode a long time ago. Also...can't help but have: "LET'S JUST PICK UP OUR SOLAR SYSTEM......AND MOVE IT SOMEWHERE ELSE" echoing in my mind, in Patrick's voice, while that part hit.
Yeah, I knew I wasn't the only one who thought that.
Wow amazing channel 😻 You explained very well. It seemed very easy to understand with animation.
“Supernovae are the biggest explosions in our universe” Gama ray bursts: am i a joke to you?