What Supernova Distance Would Trigger Mass Extinction?
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The deaths of massive stars results in one of the most beautiful and violent events in the universe: the supernova. They are so luminous we can see them here on Earth and historical records show that we can even see them into the day. But supernovas release deadly and violent radiation that could destroy our atmosphere. So how far away do these supernova have to be for humanity to be safe? And when will the next supernova occur
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Hosted by Matt O'Dowd
Written by Matt O'Dowd
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@pbsspacetime 11 місяців тому
Big thanks to the early gang! Because as noted a few episodes ago: Since our comment response livestream, we've noticed that YT isn't sharing our videos as much with our subscribers. So we're asking our subscribers to 1. switch their subscriptions from "PERSONAL" to "ALL" (just click on the subscribe button and you'll see it) and 2. Watch new episodes as soon as they can!
@DanFrederiksen 11 місяців тому
congressman Tim Burchett said on fox 6 days ago that we are not alone, we will get answers at the hearings and we have been planning it for quite some time. Those are disclosure words. The clip is on his youtube channel. It's showtime in our local spacetime.
@TechyBen 11 місяців тому
Is audio garbled on the upload? Seems a one off, all your other videos are perfect. :) (Ah, might be UKposts still processing?)
@mattmaas5790 11 місяців тому
@@DanFrederiksen not the best sources you have there but I too believe there might be something to the ufos!
@artificercreator 11 місяців тому
You can do it man! Have a good day!
@houjous5131 11 місяців тому
That's jedi hand wave makes me think spica's name isn't spica.
@DanielSolis 11 місяців тому
"Supernova Kill Zone" is a great album name.
@pufthemajicdragon 11 місяців тому
Wake up the dawn and ask her 'why a dreamer dreams, she never dies?' Wipe that tear away now from your eye.
@Celeste__ch. 10 місяців тому
.eman mubla taerg a si "enoz llik avonrepuS"
@jayg6138 10 місяців тому
Alien Superstar is a Beyoncé song name lol
@coachhannah2403 10 місяців тому
Or name for a band.
@blokin5039 10 місяців тому
Albums don't exist anymore.
@ErikSchlyter 11 місяців тому
Neat how the Supernova in the intro animation seems to be stuck in a geostationary orbit in the middle of the sky while all the other stars keep scrolling in the background.
@fredburns6846 11 місяців тому
neat?
@subliminalvibes 11 місяців тому
Not to mention the SIZE of it! 👍😆 It may be as bright as the moon but it's never gonna grow as large in the sky!! 🤣🤣
@fredburns6846 11 місяців тому
@@busimagen thought they were ded
@Ken.H 11 місяців тому
I'm happy someone pointed this out.. I feel bad for how much that bugged me.
@PizzaPowerXYZ 11 місяців тому
@@busimagen or drink water
@jacoblashley4018 11 місяців тому
Even though it’s incredibly unlikely, I can’t help but hope we get lucky and get to see Betelgeuse go supernova within our lifetimes. Would just be so cool
@larrywest42 11 місяців тому
IIRC, we just have to say its name three times?
@longboardfella5306 11 місяців тому
Would be HOT - just saying 😉
@sdwone 11 місяців тому
It would be Absolutely Mind-blowing! And would probably disturb a lot of small minded individuals, which would be icing on that proverbial cake!
@brianhulben1695 11 місяців тому
It already did what it does, he said it. It expelled a layer from itself.
@Ash-fd6lw 11 місяців тому
Any aliens living on a planet near BeatleJuice probably don't share your sentiment.
@shanthi-the-bard 11 місяців тому
"Betelgeuse should go supernova in about 10,000 to 100,000 years." First thought: Oh, that's not too long. Second thought: 10k years is about as long as recorded human history and 100k is about as long as the human species has existed. Third thought: Astronomical time scales are pretty big for our reckoning of time.
@richardwilcox3643 11 місяців тому
No, he said between 10, and a hundred thousand years. It could happen in 2033 🤔
@shanthi-the-bard 11 місяців тому
@@richardwilcox3643 Yeah, it seems so. When he said "between 10 and 100 thousand years," I interpreted that as the "thousand" modifying both words. But I think he'd have been more precise in his wording if that's what he meant.
@shanthi-the-bard 11 місяців тому
@moi2833 You misunderstand me. I was admitting I was wrong and saying that if I had been right in my interpretation, he'd have been careful to say 10 thousand to one hundred thousand. In other words, IF that's what he'd meant, he'd have been precise in saying so. That's how I know that my initial interpretation wasn't correct. I wasn't criticizing his/their precision.
@DrWhom 11 місяців тому
Pretty pretty pretty big
@sephirapple7317 11 місяців тому
The video is incorrect in stating 10-100,000 years, even in writing it. This is probably an oversight, as I've looked into this and the consensus seems to be that 10 years is far too short a timescale for this star to go supernova! To the people saying that PBS Space-time would never make such a mistake and would have specified 10,000 if they so intended, I have seen a number of similar errors in previous PBS space-time videos. Whilst the channel is very informative and for the most part offers good information, there are some occasions when the data presented is NOT correct, and I can say this with certainty! Do your own research guys, consult multiple sources, and don't believe everything you see in one video!! Even reputable sources like this channel or even Wikipedia occasionally get things wrong. Additionally, consider that 10-100,000 is somewhat an ambiguous term: it could mean either 10 or 10,000 as the lower limit, I have seen ranges written like this before that can be interpreted either way! For example, 4-500 could mean 4 or 400 to 500! There is often no way to know how such a range should be interpreted! However, in this case, I can say that 10 years is far too short a timeframe for Betelgeuse to go supernova, 10,000 is generally the accepted lower limit for this estimate! Once again, do your own research people, don't just believe me, find out for yourself and you will see that 10 years is not the correct lower limit in this case!
@bertberw8653 11 місяців тому
Matt is BY FAR my most favorite speaker. I could listen to this man for hours and I would never get tired, he's the coolest
@abursh 11 місяців тому
I found Matt's mum's UKposts account 😊
@luiginotcool 11 місяців тому
@@abursh go on give us a look
@middleline7249 11 місяців тому
@@abursh Spill
@JohnnyNiteTrain 11 місяців тому
Guess you haven’t heard Dr. David Kipping on Cool Worlds then.
@joeselles4043 11 місяців тому
The spokesman for cool worlds is phenomenal if you’re looking for somebody good. Both are great.
@OpenMicRejects 11 місяців тому
TLDW? Summary: If you say Betelgeuse 3 times a massive star will explode in about 50,000 years.
@pbsspacetime 11 місяців тому
What do we think will happen if everyone in the Space Time audience says Betelgeuse 3 times? Think we can knock that number down to our lifetime?
@OpenMicRejects 11 місяців тому
@@pbsspacetime Love group projects! Let's try it. :)
@michaelsommers2356 11 місяців тому
Also, if you don't say 'Betelgeuse' three times, or at all, the same star will go boom at the same time it would have if you do say it three times.
@ekothesilent9456 11 місяців тому
@@michaelsommers2356proof that even stars are susceptible to reverse psychology
@SeeStuDo 11 місяців тому
We come for your satellites, Chuck.
@taghanrigh 11 місяців тому
I always love seeing the creative ways Matt finishes off with "Space Time" every episode!
@williekopenski8471 10 місяців тому
Me too!
@generalmartok3990 10 місяців тому
He said the thing!
@Ignirium 10 місяців тому
I really wish you said "finishes off every episode with "space time"" :)
@codycopeland7527 11 місяців тому
It never ceases to boggle the mind that type 2 supernova are caused by the humble neutrino. A particle that interacts so weekly with regular matter.
@srinitaaigaura 10 місяців тому
What's more astonishing is that the collapse turned 15-20% of the rest mass energy into pure explosion! Apparently 100% of the rest mass is converted at the moment the star collapses to the event horizon.
@douglaswilkinson5700 10 місяців тому
Type II are *not* caused by neutrinos. They are caused by the star running out of fusible elements in its core. The rebound from the core collapse is not powerful enough to unbind the star. It's the enormous number of outbound neutrinos that finish blowing the star apart.
@Mostopinionatedmanofalltime 5 місяців тому
Weakly.😊
@nuntana2 4 місяці тому
Was always lead to believe it was chiefly the outer layers catching up with the core (on collapse) and rebounding of it that caused most of the drama. Neutrino activity is an added bonus.
@codycopeland7527 4 місяці тому
@@nuntana2 you are correct! The majority of the energy for the explosion is caused by exactly that! However when the first simulations of supernova were ran, the matter failed to escape the stars immense gravity after rebounding off from the central iron core. Meaning a complete supernova did not occur. it wasn't until the neutrino was discovered and subsequently added to the simulation, that a complete supernova occurred. Essentially, the effects from neutrinos attempting to escape the stars gravity, added just enough energy to the system to allow the whole thing to go boom!
@pinetreegang5232 11 місяців тому
Could you do a video on everything about light, like how it carries momentum despite being massless, and how it has polarization
@pbsspacetime 11 місяців тому
Oooh. That's a pretty good idea! Thanks!
@the_unrepentant_anarchist. 11 місяців тому
PBS did all of them ages ago- try looking instead of expecting things to just be given to you. 🙄 🍄
@the_unrepentant_anarchist. 11 місяців тому
@@WemplesTemple Because then they might actually *do* something, instead of just sitting there expecting to be spoon-fed. You have to be pretty stupid to expect a physics channel that's been going *for almost ten years* to have *not* covered the topics they mentioned, and if that's the case, then a gentle reminder to *not* be an imbecile might- *might-* do some good. 🍄
@shamargentle5801 11 місяців тому
@the_unrepentant_anarchist. I get your point but like even the creator said it was a good idea like some people don't have the time or know where to start plus he does a good job of putting in terms many people can understand so they probably trust the channel
@anoyingnomad 11 місяців тому
@@the_unrepentant_anarchist. And they just commented themselves that it's a great idea. So they probably did not. Also, something went wrong during parenting. Having an attitude like that towards random people sharing idea's, one of the core things within science.
@erinkarp 11 місяців тому
I love when astronomy and paleontology connect
@Its__Good 11 місяців тому
Can you explain how the Romulans were caught unaware by the supernova that destroyed Romulus?
@juliasophical 11 місяців тому
That supernova was not a natural occurrence: the supernova and the unusual behavior of its shockwave (which travelled through subspace at superluminal speed) were caused by an Iconian-designed doomsday weapon. Don't ask me how I know this... 🤣 [Canonicity: This is from Star Trek Online.]
@pbsspacetime 11 місяців тому
We were going to say "NO", but it looks like @juliasophical has successfully covered for our lack deep cut star trek knowledge!
@Jackiee_Chann 11 місяців тому
@@pbsspacetime hey, can you help Me understand why the supernova was stationary in your video ? Do they stop moving once they explode ? Young curious but confused mind
@pierfrancescopeperoni 11 місяців тому
@@Jackiee_ChannFair question from the beginning, it gets Aristotelic as you keep reading.
@DougieBarclay 11 місяців тому
@Jackie Chan lol, it's just how the animated it. There was no hominid sitting under the tree for days on end watching a stationary supernova.
@brandonlittle6444 11 місяців тому
Matt and PBS! Is Life in inter Galactic space possible? The medium between galaxies is rarely discussed. Anywhere.
@pbsspacetime 11 місяців тому
Oooh. That's also a pretty good topic. Thanks for the suggestions!
@mikeoxmall69420 11 місяців тому
That would be the loneliest existence I can possibly imagine
@skierpage 11 місяців тому
@@mikeoxmall69420why? If you're living on an Earth-like planet orbiting a Sun-like star, does it matter that there's no Milky Way in the sky? Maybe there's some physics that precludes a Sun-like star in the middle of nowhere; all I know about the subject is from Lee Marvin singing "I was Born under a Wand'rin' Star" in Paint your Wagon.
@CarlaPowers-dz1fn 10 місяців тому
I recently found Spacetime and binge watched all the episodes over the last few months. Thanks for such an amazing show Spacetime team! I look forward to watching new episodes as they come out.
@joaobarros6744 11 місяців тому
I loved the fact that Matt just knew everyone was thinking how far betelgeuse is and just answered it without a thought!
@jurajjamrich7905 9 місяців тому
😊
@Rimpelmans 11 місяців тому
I just watched a video by Dr. Becky in which she mentioned that a new scientific paper calculated the time for Betelgeuse to go Super Nova to be decades / up to a 100 years. The paper has not been peer reviewed yet, but if it is true it might happen in our lifetime!
@KE-yj4ip 11 місяців тому
This. I was going to mention this if I didn't see it in the comments.
@skierpage 11 місяців тому
It's "New study claims Betelgeuse supernova IMMINENT | Night Sky News June 2023" 🌠💥
@laszlozoltan5021 11 місяців тому
@@skierpage I bet that brought a few more clicks than usual
@zakzwijn8410 10 місяців тому
That would beyond awesome, I'd travel around the world to see that
@birdthompson 10 місяців тому
@@zakzwijn8410 I think Orion would be visible many places
@ALessandrone 11 місяців тому
Your video is much easier to follow for a non native english speaker like me than your old ones were, i hope i can watch the other ones to the full again in the future because they are super interesting
@fwiffo 11 місяців тому
Eta Carinae is also a good candidate for a naked-eye-visible supernova (though not as close as Betelgeuse.) It's a wacky weird star though (two, actually), so its behavior is more unpredictable.
@subliminalvibes 11 місяців тому
Yeah they reckon that thing could go off anytime! Would be so amazing to see.
@Arsenico971 11 місяців тому
That's 7500 ly away, I'm afraid what we would see from here would just be a new "regular" star in a formerly empty spot of the sky.
@EnglishMike 11 місяців тому
@@Arsenico971 But it's still close enough for our big telescopes to get a good view of what's happening, so there would be a lot of very interesting discoveries made, no doubt.
@thomasrinschler6783 11 місяців тому
@@Arsenico971 Eta Carinae is already visible with the naked eye though (although at 4th magnitude currently, it's nothing spectacular to look at with the naked eye), so it wouldn't be coming from an empty spot in the sky. When it goes supernova, it will definitely well surpass the brightness of Venus.
@giovannielixir 11 місяців тому
@@Arsenico971there's also a chance that Eta Catarine may go hypernova witch would make for a significant bigger boom
@mojoneko8303 11 місяців тому
I for one have no complaint's about living in a boring "Goldilocks zone" of the universe. Humanity has enough on it's plate to deal with already. Thanks for the video.
@DrWhom 11 місяців тому
I for one have complaints about your spurious apostrophes
@sheldoniusRex 11 місяців тому
@Deipatrous be thankful that you have so few real problems as to worry about other's punctuation.
@zacharywong483 11 місяців тому
Absolutely fantastic video, as always! Really great explanations and visuals here!
@anoyingnomad 11 місяців тому
I was hoping for this video forever! Thanks for existing PBS SpaceTime❤
@thej3799 11 місяців тому
I simply want to thanks PBS for doing with it too everything they said was true and the way they present the information treats us like we're not stupid you don't know how or maybe you but it's incredibly valuable that we're not treated like we're stupid
@ARedditor397 11 місяців тому
I have watched PBS Space Time for 6 years since now
@terryhollands2794 11 місяців тому
Long time watcher also
@jaikturner3221 10 місяців тому
Forever a show to interact with, I’d honestly buy these year by year box set videos. Or even maybe topics. Keep it coming.
@isbestlizard 11 місяців тому
Crazy to think ghostly neutrinos have enough interaction to explode a star o.o
@TheRABIDdude 11 місяців тому
Yeah how does that work? Which of the four forces are they using to push the matter outwards?
@ArawnOfAnnwn 11 місяців тому
They don't explode the star, they're just the most numerous stuff that gets exploded out when the star explodes.
@yourbuddyben4854 11 місяців тому
@@ArawnOfAnnwn Had to rewatch but that is what he said. “This releases an explosion of neutrinos that are so numerous and energetic that they blast the surrounding layers back out. That’s the supernova.” 4:19 I get what the original comment is saying. The neutrinos are blasting the layers out making the explosion. If they didn’t then there is no explosion.
@volbla 11 місяців тому
@@TheRABIDdude Iirc it's the weak force. It's what they called a "neutral current" in the early days of neutrino observation.
@volbla 11 місяців тому
A channel called "But Why?" has made an excellent video about the details of core collapse supernovae called "When Stars Outshine Galaxies." It's a really strange and complicated event.
@B3havior 11 місяців тому
That first pre-pre-pre-pre-stargazer was clearly a member of the Astronomopithicus genus
@Hares_Pit 11 місяців тому
Imagine how brave (or foolish) that organism had to be to leave cover at night, exposing itself to nocturnal predators.
@wdd3141 11 місяців тому
Astronomopithicus? One who throws stones at the sky?
@user-jl1sr2kj6g 11 місяців тому
Spacetime is the best youtube channel. Hopefully they can diversify their revenue streams enough so that they can keep making content and weather the youtube storms.
@danielmurphy1982 10 місяців тому
Matt is out of Gabes shadow. He's casting it on the other PBS presenters (maybe not that dinosaur bloke). Best compliment I can give. High praise indeed.
@momo7gato 11 місяців тому
I was just learning about different types of supernovae. Then this video answered the heaviest question. Thanks for the info!
@General12th 11 місяців тому
Hi Matt! This channel is a supernova of knowledge.
@williammogey1829 11 місяців тому
Matt, Shock Front is officially the name of your new metal band.
@jamielancaster01 10 місяців тому
I love this channel - keep up the good work brother!
@blitzmotorscooters1635 11 місяців тому
Incredibly badass video answer to a question Ive had for years. THANKS
@goodisanoun 11 місяців тому
Can you do a series on chaos/complexity theory and how it relates to physics?
@LesterWayneDobos 11 місяців тому
Great shirt! And awesome production as always. I was looking at Spica other night, powerful star 1000x times more luminous than our sun if I remember correctly. Antares and Arcturus are awesome stars. Antares appeared deep orange, and Arcturus slightly brighter reddish orange was shining brilliantly just observing such powerful energetic suns at those distances keeps me awakened. Vega is a bright one much closer blue star and with totally different physical properties. 👍
@xephramwatches7259 11 місяців тому
Where do we get the shirt?
@vcuheel1464 11 місяців тому
Videos like this are my favorites of the ones you make.
@VZBudgetBuildz 9 місяців тому
I’ve always thought about this and have even had a reoccurring nightmare where the sky looked like a supernova and everything felt soooooo heavy and it was the most intense fear, so much so I couldn’t move, like forced falling, -10gs in your gut and chest. The dream always started and ended the same. And I think it has to do with something I saw when I was younger…
@skjoldgames 10 місяців тому
I've had the great privilege of living through several rare celestial events, like the 2000 conjunction and Hale-Bop, but if I get to see Betelgeuse go supernova, it'll be the crown jewel of a life well lived observing astronomy.
@luudest 11 місяців тому
Super Novae take place in a very short amount of time. How come the aftermath of the event can be seen over weeks? What is the reason for the slow decline of the brightness curve?
@Roaring2Thunder 11 місяців тому
Distance
@juliasophical 11 місяців тому
The light you see following a supernova is from the expanding gasses, still heated to such high temperatures that they're glowing white hot in visible light. It takes weeks or even a couple months for this cloud of gas to expand and cool to the point that it's no longer emitting visible light.
@luudest 11 місяців тому
@@juliasophical thank you!
@LynxUrbain 11 місяців тому
Perfect ! This timeline gives us a little leeway to focus on solving the very insignificant problems that our planet is currently experiencing. 😬
@michaelsommers2356 11 місяців тому
Great! We'll solve our problems just in time to be exterinated by a supernova. Or a Vogon Constructor fleet.
@SonicPhonic 10 місяців тому
Thanks so much for the reliable and sensible information. We are lucky to have a stable planet, let's respect it.
@genoproducto 11 місяців тому
Thank you, honestly you should be Australian of the year mate. I greatly appreciate and anticipate this video. Let's go! ❤
@scottslotterbeck3796 11 місяців тому
Mass extinction sounds serious!!!
@jestermoon 11 місяців тому
Yes! Or PM
@genoproducto 11 місяців тому
@@scottslotterbeck3796 it'll be okay man. Just live each day as best as you can.
@genoproducto 11 місяців тому
@@jestermoon I wouldn't get education involved in Politics ahaha.
@jaybain4337 11 місяців тому
I HIGHLY recommend reading the Cixin Liu novel “The Supernova Era”, which details how humanity reacts to the devastating impact of a nearby supernova.
@BlackLukeS 9 місяців тому
Amazing vid as always. One of my favourites channels on YT
@coltonsimms763 10 місяців тому
You Anton Petrov, and Sabine Hoffenfelder are the best! Watched your interview on Startalk, awesome man!
@DragoniteSpam 11 місяців тому
Perfect timing, I just finished rewatching the GRB video for extra existential horror :')
@donrane 10 місяців тому
I always wonder how many humans through time have realized that the stars where just like our sun, just farther away.
@delphicdescant 10 місяців тому
I wonder what fractions of humans living *today* realize that.
@larryc835 10 місяців тому
The Backbone of Night.🌌
@robertschlesinger1342 9 місяців тому
Excellent video. Very interesting, informative and worthwhile video.
@kentuckydave2008 9 місяців тому
If you can honestly attest that the first half of this video does not send your "Death by Supernova Anxiety Meter" through the roof, then that makes you my new hero... Good golly, I was seriously debating going to locate a lead umbrella for myself... Thank you to the wonderful narrator for bringing us back down to normal before you finished explaining the concept therein.
@mattmaas5790 11 місяців тому
This is swaggiest swag ive ever seen
@kimjongun8906 11 місяців тому
Amen
@Pickelhaube808 11 місяців тому
so swag
@thecrakp0t 11 місяців тому
Yeet
@clarambrosia9834 11 місяців тому
rt
@thebinkbink6349 11 місяців тому
Great shirt!
@WrongDemographic 10 місяців тому
Great vid, as always. I'd really like to see a supernova (from a safe distance!). One comment on the bit of CGI right at the start -- it's showing what I assume is supposed to be the supernova, but the bright light is static in the sky and not moving with the background stars.
@philipmurphy2 11 місяців тому
Interesting edition of PBS Space Time for sure.
@MR0KITTY 11 місяців тому
According to the latest Transformers movie, where smashing the MacGuffin Crystal would release the power of a super nova, you're good as long as the super nova is outside of any nearby city.
@sjzara 11 місяців тому
It’s probably a good idea to build colonies deep in the sea or some way underground just in case.
@JCO2002 11 місяців тому
I study caves here in Jamaica. Might filter the database with a few parameters (distance below surface, hydrology, accessibility) to find a good hidey-hole.
@jimmyjasi- 11 місяців тому
Great something tied to Life on Earth at last! And it further disproves Anti-Darwin Creationism that dominates US.
@TechyBen 11 місяців тому
Also, a lot of salt mines. If someone notices a lot of neutrinos suddenly, look up your countries local salt mine. ;)
@jimmyjasi- 11 місяців тому
@@TechyBen And plenty opportunities for engennering new race of humans deep sea fish like
@infinitemonkey917 11 місяців тому
A deep sea colony would be extremely dangerous with the pressure and such.
@anthragestormrider2493 10 місяців тому
I absolutely love the Missile Command-style visualization for cosmic rays.
@theanonymousseeker3952 10 місяців тому
I like the "game over" shirt with the extinction video!
@NewMessage 11 місяців тому
On the upside, my brain would get a lovely tan... straight through my skull, even!
@subliminalvibes 11 місяців тому
In the intro animation it should be noted that a supernovae doesn't appear as LARGE as the moon. It remains a point-source of light no matter the brightness; and as pointed out by someone else, it wouldn't appear stationary in the sky either. 👍😎🇦🇺
@spencerjones6790 11 місяців тому
Fantastic episode as always
@atothetop3779 11 місяців тому
I’ve watched every single upload on this channel for the last 3-4 years multiple times
@artificercreator 11 місяців тому
Good work! This is super interesting! So, neutrinos can actually interact with matter under certain conditions?
@bengoodwin2141 11 місяців тому
Not so much certain conditions, just an incredibly small chance
@sciencoking 11 місяців тому
The supernova just produces _that_ many neutrinos
@DrZedDrZedDrZed 11 місяців тому
In the death throes of a dying star on its way to becoming a neutron star or black hole, they're produced in such insanely prodigious quantities that the rare probability of interaction with all the light elements in the outer shell becomes an inevitability. It's actually kind of wild. There are several waves of neutrino interaction in the forms of "swells" that create a physical pressure that expands the core's material before gravity pulls it back in again and restarts the cycle. It's actually so spectacularly balanced, I actually kind of think of it as one of these more overlooked "fine tuning" arrangements. These erstwhile almost useless, very confusing particles have one of the most important roles to play in not just stellar evolution, but cosmological evolution. Think about it. If neutrinos were perfectly neutral, there would not BE all the rich heavy elemental star stuff around to build US.
@artificercreator 11 місяців тому
@@bengoodwin2141 Oh interesting!
@artificercreator 11 місяців тому
@@sciencoking Oh nice!
@fredburns6846 11 місяців тому
im surprised they made that weird choice of having the supernova stationary. i guess maybe they didnt create this animation and decided the inacuracy was worth it.
@TheEnigmaUniverse-vt2pm 6 місяців тому
"thank you for uploading these videos. Even if I'm having a hard night, I just put a relaxing astronomy video on and listen. It always makes my nights go much easier. Thank you!!!"
@chaerodactyl 10 місяців тому
coming from a neuroscience undergrad, I see supernovae as action potentials in the neural net of the cosmic web. they're catalysts for information aggregation and dispersal, on scales of time and space that we can never truly comprehend
@MC-wh3xm 11 місяців тому
I recall that Kurzgesagt made a video about this exact topic this year, and then it got me thinking how cool a mash up episode would be ❤
@stalexann 11 місяців тому
They both have silly accents and are pretty similar. Matt just uses less r’s and is more condescending.
@MC-wh3xm 10 місяців тому
@@stalexannSpacetime is wayyy less preachy though
@Oosystem 11 місяців тому
I love these videos, but I have to say, there is something weird with sound/voice compression on youtube. I started noticing, a few weeks ago, some distortions in the voice, and weird stereo panning (checked it on audacity sound editor, and both android/windows devices). If you use headphones it gets worst. It is happening in lots of videos, not only here.
@TheBloodyriot 11 місяців тому
Yeah, I was noticing that too.
@djmips 11 місяців тому
Perhaps you've been watching a lot of videos right after they were uploaded? They are lower quality initially and then get better over time.
@Oosystem 11 місяців тому
@@djmips Sometimes that's the cause. But in this case it is something related to how they record the voice. When he talks about brilliant, (at the start and at the end of the video), the voice is nice without distortions.
@TonyWhite22351 10 місяців тому
Added to which this guy punctuates virtually every word with an exaggerated wave of his hands which makes watching him talk difficult !
@RobertNicolo 10 місяців тому
Really loved this video! Pls do more like these!
@EternalGamingNet 10 місяців тому
Very informative, thank you for the video!
@ETLee-db6cn 11 місяців тому
Keep in mind that a portion of the Earth will generally be completely shadowed from a supernova, depending on its location in the sky. In the extreme, a supernova in the direction of Polaris would not be visible in the southern hemisphere at all, despite Earth's rotation.
@nomansbrand4417 11 місяців тому
Good catch. And if anyone's wondering: earth axis of rotation is not at all aligned to the rotational axis of our Galaxy, and also our Galaxy easily messages a few kill zones in thickness. A half fried earth could actually happen :) not sure though, if the atmospheric ozon will stay bound to one hemisphere, when the other hemisphere is depleted for 100s to 1000s of years
@thej3799 11 місяців тому
Have you ever seen the movie The Knowing
@wolfgangsimons9183 11 місяців тому
That´s only correct for a short gamma - or X- ray burst, but any particle rain lasts longer than one day. Btw, how possible is it to be hit rightway polar? Don´t hold your breath ..... I´d really like to watch Betelgeuse go supernova, but who knows when?
@Szgerle 11 місяців тому
You know that the air and ocean boiling away on one side of the planet would be global extinction anyway, right?
@DrakeAurum 10 місяців тому
Depleting all the ozone on one side of the planet is still getting into the danger zone, And since air circulates, the depletion will be ongoing if the effect of the supernova persists for longer than a few days.
@6Twisted 11 місяців тому
I know it's unlikely but still pretty scary that we could be wiped out by a GRB from thousands of lightyears away at any point.
@stalexann 11 місяців тому
If it makes you feel any better, the building you’re in could completely collapse at any point due to a structural flaw, and the surrounding area would be sad for an afternoon before continuing business as usual the next morning.
@deltalima6703 10 місяців тому
Asteroid could take a building out pretty quick. Earthquake is a bit slower if you are not in a rush.
@newtscamander8413 4 місяці тому
You are so greatS i am going to auggest this channel to all my friends who has sleep apnea.
@hasko_not_the_pirate 11 місяців тому
44 minutes after posting and there’s already a million comments? I feel like I’m insignificant among the stars.
@khatharrmalkavian3306 11 місяців тому
Bro, you gotta be careful saying Betelgeuse repeatedly in a short period of time. Lori Lightfoot may show up suddenly.
@chekote 11 місяців тому
Why’s the supernova stationary in the sky? 🤔
@gleradon 11 місяців тому
I am not native English speaker so I had to rewind first few seconds of video if what I was seeing and hearing was consistent. Major oversight.
@GGoAwayy 11 місяців тому
Whys the ancient hominid stationary under the tree? 🤔
@brandonlittle6444 11 місяців тому
Noticed that too. ..
@white-bunny 11 місяців тому
Maybe it's in similar position of the north star?
@chekote 11 місяців тому
@@white-bunny that would make sense if the other stars rotated around it. But they’re all flying past it.
@nicholasrose6556 10 місяців тому
I like the refresher text..very helpful
@robbiejett1197 10 місяців тому
Commenting to help the algorithm. Love these videos and glad pbs is still putting out these
@MacedonianHero 11 місяців тому
The religious say the universe was "designed for life". Really? Looks like life is a bug in our universe and NOT a feature.
@DrWhom 11 місяців тому
Well the universe is compatible with life, just about
@MacedonianHero 11 місяців тому
@@DrWhom Except for literally 99.9999999999999999% of it. Of which environments will KILL all life. Nice try religitard.
@waynesmallwood6027 6 днів тому
Makes more sense if you study Probability.
@MacedonianHero 5 днів тому
@@waynesmallwood6027 Here is some Probability (from a guy with a Masters degree in Engineering and a Lean Six Sigma Black Belt: over 99.9999999% of the solar system is in hospitable to life. ;)
@nils-erikolsson3539 5 днів тому
You sure? Given how hostile it is and life still start? Id say it was made for life or life thrives in this hostile universe. Almost like its gonna startin every universeover and over cause its in the fabric,in the genes,in the math.It cant cant happen.It _must_ happen. Its harder to defeat than HIV.
@PeteOnTheBeat 11 місяців тому
Holy cow. This has been scary to me since we dodged a bullet this year.
@Trias805 11 місяців тому
What bullet?
@dr.victorvs 11 місяців тому
I love getting the Discord notification (maybe now that I've finished my PhD there'll be room in my brain to memorize the day on which videos come out). Anyway, awesome video. My suggestions have been fulfilled (I used to ask for QCD, so I got 3 videos!). What about something on particle generations, now? By the way, Matt, @11:13, did you say "presumadly"? 😂 That was hilarious. I'm gonna let the "we also see them freque...n̶t̶̶l̶̶y̶...cy" slide, though.
@ender1598 11 місяців тому
Another great episode... thanks!
@marchuthart3261 11 місяців тому
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@marchuthart3261 11 місяців тому
@Christine Carola West After I got up to $300k trading with Mrs Mary margaret Schimweg i bought a new House and I'm now able to send my kids to a better school in the states thanks to her. When someone is straight forward with what he or she is doing people will always speak up for them.
@huyhritter1724 11 місяців тому
I've accumulated generational wealth in two years trading with Mary Margeret schimweg's services. Her firm and brokerage is the best I have encountered in my life history of investing in stock and crypto market and other digital assets like real estate..
@marchuthart3261 11 місяців тому
Write her, she will guide you.
@marchuthart3261 11 місяців тому
+1947
@marchuthart3261 11 місяців тому
214
@TactileTherapy 11 місяців тому
Just started the video. This is a major plot point in a novel I released in 2018. I really hope the answer is the same one in my book lol 😅
@jestermoon 11 місяців тому
42
@debrachambers1304 11 місяців тому
Well, was it?
@TactileTherapy 11 місяців тому
@@debrachambers1304 Matt said 150 Ly for reg super and several thousand for hypernova. So yes i got it right 😅🙌🏾
@dyotoorion1835 11 місяців тому
Great vid as always. Cheers! :-)
@PhrontDoor 10 місяців тому
LOLing at the bright star staying still in the sky as time-lapse shows the other stars scrolling by ;) 00:30ish
@DeltaVTX 11 місяців тому
It’s pronounced: “Betelgeuse”.
@timmcdaniel6193 11 місяців тому
Betelgeuse? Betelgeuse? AAAAHHHHHH!
@bluespeck9119 11 місяців тому
Why isn't the supernova rotating with the night sky? :/
@battshytkrazy156 11 місяців тому
IDIOCY
@TheEvilmooseofdoom 11 місяців тому
sloppy animation.
@yourguard4 11 місяців тому
I tend to "illustration purposes", to show, how it would look like during night and during day. Because, both scenarios are possible.
@Amethyst_Friend 11 місяців тому
That is the best ever intro on this channel
@hoon_sol 11 місяців тому
Strictly speaking, the literal translation of "yad al-jawza" is "hand of the one in the middle", or "hand of the central one", but in context that "central one" does indeed refer to "the giant", i.e. Orion.
@MarvinHartmann452 11 місяців тому
Thanks for the insight.
@cwwiss1 11 місяців тому
Perhaps a better question is " Were supernovas responsible for some of the trigger points in evolution" ?
@GodIsADelusion 11 місяців тому
I mean, that's a completely different question. It's not "better."
@TheEvilmooseofdoom 11 місяців тому
Trigger points?
@EnglishMike 11 місяців тому
I would hazard that without supernovae close enough to impact Earth, we wouldn't be around today. It wouldn't have taken much of a change in events for evolution to have turned right instead of left (so to speak) and end up going in a completely different direction. A supernova at the right time could have been enough.
@cavetroll666 11 місяців тому
would be amazing if we saw it go off in our lifetime :) anyways love the channel thanks.
@FrancoGrimoldi 11 місяців тому
Absolutely wonderful, thanks!
@thegoblin9387 11 місяців тому
This channel makes some badass videos for real
@ironfistgaming8945 11 місяців тому
it would be nice seeing a supernova in the sky like the one mentioned as the first one in the story
@myBestWishes677 10 місяців тому
Thank you for this work!
@tomstanley2438 11 місяців тому
Excellent video as always
@devinfaux6987 11 місяців тому
Betelgeuse is currently playing a grand, cosmic variation of "Pop Goes the Weasel," only every note takes a thousand years.
@danielhenderson7050 11 місяців тому
I jumped the gun with the "spacetime" outro this time, you got me 😆
@SpamMouse 11 місяців тому
I remember explaining to a fellow student at university who was suggesting it would be an amazing spectacle to witness that the destruction would arrive at the same time as the pretty flashy lights.
@zeross39 11 місяців тому
well it would arrive before it tho
@funnyman4744 11 місяців тому
Can you guys make an episode similar to rhe spinning black holes episode where you discuss all the processes a black hole goes under? Ex: the blandford znajek process and the Penrose process
@petermarchut3321 10 місяців тому
Said frequency instead of frequently and it made me laugh. I dunno why. Great vid as always! 12:36
@mostwanted2000 11 місяців тому
Love all your videos!
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