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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Опубликовано:

10 июл 2024

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Комментарии : 1,8 тыс.

@pbsspacetime Год назад

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 Год назад

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 Год назад

Is audio garbled on the upload? Seems a one off, all your other videos are perfect. :) (Ah, might be RU-vid still processing?)

@mattmaas5790 Год назад

@@DanFrederiksen not the best sources you have there but I too believe there might be something to the ufos!

@artificercreator Год назад

You can do it man! Have a good day!

@houjous5131 Год назад

That's jedi hand wave makes me think spica's name isn't spica.

@DanielSolis Год назад

"Supernova Kill Zone" is a great album name.

@pufthemajicdragon Год назад

Wake up the dawn and ask her 'why a dreamer dreams, she never dies?' Wipe that tear away now from your eye.

@Celeste__ch. Год назад

.eman mubla taerg a si "enoz llik avonrepuS"

@jayg6138 Год назад

Alien Superstar is a Beyoncé song name lol

@coachhannah2403 Год назад

Or name for a band.

@blokin5039 Год назад

Albums don't exist anymore.

@OpenMicRejects Год назад

TLDW? Summary: If you say Betelgeuse 3 times a massive star will explode in about 50,000 years.

@pbsspacetime Год назад

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 Год назад

@@pbsspacetime Love group projects! Let's try it. :)

@michaelsommers2356 Год назад

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 Год назад

@@michaelsommers2356proof that even stars are susceptible to reverse psychology

@SeeStuDo Год назад

We come for your satellites, Chuck.

@jacoblashley4018 Год назад

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 Год назад

IIRC, we just have to say its name three times?

@longboardfella5306 Год назад

Would be HOT - just saying 😉

@sdwone Год назад

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 Год назад

It already did what it does, he said it. It expelled a layer from itself.

@Ash-fd6lw Год назад

Any aliens living on a planet near BeatleJuice probably don't share your sentiment.

@ErikSchlyter Год назад

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 Год назад

neat?

@subliminalvibes Год назад

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 Год назад

@@busimagen thought they were ded

@Ken.H Год назад

I'm happy someone pointed this out.. I feel bad for how much that bugged me.

@PizzaPowerXYZ Год назад

@@busimagen or drink water

@NeoVox117 Год назад

Notice how Matt specifically said, "Your ancestors," and not "Our Ancestors..."

@zlodevil426 4 месяца назад

If I were a science show host I’d totally pretend to be an alien very good at hiding and occasionally make “mistakes” like this

@bertberw8653 Год назад

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 Год назад

I found Matt's mum's RU-vid account 😊

@luiginotcool Год назад

@@abursh go on give us a look

@middleline7249 Год назад

@@abursh Spill

@JohnnyNiteTrain Год назад

Guess you haven’t heard Dr. David Kipping on Cool Worlds then.

@joeselles4043 Год назад

The spokesman for cool worlds is phenomenal if you’re looking for somebody good. Both are great.

@taghanrigh Год назад

I always love seeing the creative ways Matt finishes off with "Space Time" every episode!

@williek08472 Год назад

Me too!

@generalmartok3990 Год назад

He said the thing!

@Ignirium Год назад

I really wish you said "finishes off every episode with "space time"" :)

@codycopeland7527 Год назад

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 Год назад

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 Год назад

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 7 месяцев назад

Weakly.😊

@nuntana2 6 месяцев назад

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 6 месяцев назад

@@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 Год назад

Could you do a video on everything about light, like how it carries momentum despite being massless, and how it has polarization

@pbsspacetime Год назад

Oooh. That's a pretty good idea! Thanks!

@the_unrepentant_anarchist. Год назад

PBS did all of them ages ago- try looking instead of expecting things to just be given to you. 🙄 🍄

@the_unrepentant_anarchist. Год назад

@@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 Год назад

@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 Год назад

@@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.

@Its__Good Год назад

Can you explain how the Romulans were caught unaware by the supernova that destroyed Romulus?

@juliasophical Год назад

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 Год назад

We were going to say "NO", but it looks like @juliasophical has successfully covered for our lack deep cut star trek knowledge!

@pierfrancescopeperoni Год назад

@@Jackiee_ChannFair question from the beginning, it gets Aristotelic as you keep reading.

@DougieBarclay Год назад

@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.

@michaelsommers2356 Год назад

@@Jackiee_Chann No, it doesn't stop moving, but SNs happen quickly (on the order of seconds to maybe minutes), and stars don't move very far in such a short time. Besides, it makes the drawing clearer. Or you could just say that the pictures are mde from the star's reference frame. Unless you are talking about that bit near the beginning of the video where the Australopiticene is watching the SN, which is probably just a mistake.

@Rimpelmans Год назад

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 Год назад

This. I was going to mention this if I didn't see it in the comments.

@skierpage Год назад

It's "New study claims Betelgeuse supernova IMMINENT | Night Sky News June 2023" 🌠💥

@laszlozoltan5021 Год назад

@@skierpage I bet that brought a few more clicks than usual

@zakzwijn8410 Год назад

That would beyond awesome, I'd travel around the world to see that

@birdthompson Год назад

@@zakzwijn8410 I think Orion would be visible many places

@erinkarp Год назад

I love when astronomy and paleontology connect

@CarlaPowers-dz1fn Год назад

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.

@mojoneko8303 Год назад

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 Год назад

I for one have complaints about your spurious apostrophes

@sheldoniusRex Год назад

@Deipatrous be thankful that you have so few real problems as to worry about other's punctuation.

@isbestlizard Год назад

Crazy to think ghostly neutrinos have enough interaction to explode a star o.o

@TheRABIDdude Год назад

Yeah how does that work? Which of the four forces are they using to push the matter outwards?

@ArawnOfAnnwn Год назад

They don't explode the star, they're just the most numerous stuff that gets exploded out when the star explodes.

@yourbuddyben4854 Год назад

@@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 Год назад

@@TheRABIDdude Iirc it's the weak force. It's what they called a "neutral current" in the early days of neutrino observation.

@volbla Год назад

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.

@fwiffo Год назад

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 Год назад

Yeah they reckon that thing could go off anytime! Would be so amazing to see.

@Arsenico971 Год назад

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 Год назад

@@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 Год назад

@@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 Год назад

@@Arsenico971there's also a chance that Eta Catarine may go hypernova witch would make for a significant bigger boom

@ALessandrone Год назад

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

@jaikturner3221 Год назад

Forever a show to interact with, I’d honestly buy these year by year box set videos. Or even maybe topics. Keep it coming.

@joaobarros6744 Год назад

I loved the fact that Matt just knew everyone was thinking how far betelgeuse is and just answered it without a thought!

@jurajjamrich7905 11 месяцев назад

😊

@anoyingnomad Год назад

I was hoping for this video forever! Thanks for existing PBS SpaceTime❤

@thej3799 Год назад

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

@hasko_not_the_pirate Год назад

44 minutes after posting and there’s already a million comments? I feel like I’m insignificant among the stars.

@danielmurphy1982 Год назад

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.

@B3havior Год назад

That first pre-pre-pre-pre-stargazer was clearly a member of the Astronomopithicus genus

@Hares_Pit Год назад

Imagine how brave (or foolish) that organism had to be to leave cover at night, exposing itself to nocturnal predators.

@wdd3141 Год назад

Astronomopithicus? One who throws stones at the sky?

@ARedditor397 Год назад

I have watched PBS Space Time for 6 years since now

@terryhollands2794 Год назад

Long time watcher also

@user-jl1sr2kj6g Год назад

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.

@zacharywong483 Год назад

Absolutely fantastic video, as always! Really great explanations and visuals here!

@LynxUrbain Год назад

Perfect ! This timeline gives us a little leeway to focus on solving the very insignificant problems that our planet is currently experiencing. 😬

@michaelsommers2356 Год назад

Great! We'll solve our problems just in time to be exterinated by a supernova. Or a Vogon Constructor fleet.

@General12th Год назад

Hi Matt! This channel is a supernova of knowledge.

@skjoldgames Год назад

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.

@momo7gato Год назад

I was just learning about different types of supernovae. Then this video answered the heaviest question. Thanks for the info!

@chaerodactyl Год назад

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

@williammogey1829 Год назад

Matt, Shock Front is officially the name of your new metal band.

@jaybain4337 Год назад

I HIGHLY recommend reading the Cixin Liu novel “The Supernova Era”, which details how humanity reacts to the devastating impact of a nearby supernova.

@kentuckydave2008 11 месяцев назад

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.

@vcuheel1464 Год назад

Videos like this are my favorites of the ones you make.

@luudest Год назад

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 Год назад

Distance

@juliasophical Год назад

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 Год назад

@@juliasophical thank you!

@LesterWayneDobos Год назад

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 Год назад

Where do we get the shirt?

@SpamMouse Год назад

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 Год назад

well it would arrive before it tho

@anthragestormrider2493 Год назад

I absolutely love the Missile Command-style visualization for cosmic rays.

@donrane Год назад

I always wonder how many humans through time have realized that the stars where just like our sun, just farther away.

@delphicdescant Год назад

I wonder what fractions of humans living *today* realize that.

@larryc835 Год назад

The Backbone of Night.🌌

@sjzara Год назад

It’s probably a good idea to build colonies deep in the sea or some way underground just in case.

@JCO2002 Год назад

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- Год назад

Great something tied to Life on Earth at last! And it further disproves Anti-Darwin Creationism that dominates US.

@TechyBen Год назад

Also, a lot of salt mines. If someone notices a lot of neutrinos suddenly, look up your countries local salt mine. ;)

@jimmyjasi- Год назад

@@TechyBen And plenty opportunities for engennering new race of humans deep sea fish like

@infinitemonkey917 Год назад

A deep sea colony would be extremely dangerous with the pressure and such.

@blitzmotorscooters1635 Год назад

Incredibly badass video answer to a question Ive had for years. THANKS

@spencerjones6790 Год назад

Fantastic episode as always

@genoproducto Год назад

Thank you, honestly you should be Australian of the year mate. I greatly appreciate and anticipate this video. Let's go! ❤

@scottslotterbeck3796 Год назад

Mass extinction sounds serious!!!

@jestermoon Год назад

Yes! Or PM

@genoproducto Год назад

@@scottslotterbeck3796 it'll be okay man. Just live each day as best as you can.

@genoproducto Год назад

@@jestermoon I wouldn't get education involved in Politics ahaha.

@MR0KITTY Год назад

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.

@jamielancaster01 Год назад

I love this channel - keep up the good work brother!

@BlackLukeS 11 месяцев назад

Amazing vid as always. One of my favourites channels on YT

@goodisanoun Год назад

Can you do a series on chaos/complexity theory and how it relates to physics?

@oldsesalt8496 Год назад

Between 10 and 100,000 years. That's when the cable guy said when he would show up.

@TheEnigmaUniverse-vt2pm 8 месяцев назад

"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!!!"

@hoon_sol Год назад

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 Год назад

Thanks for the insight.

@ETLee-db6cn Год назад

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 Год назад

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 Год назад

Have you ever seen the movie The Knowing

@wolfgangsimons9183 Год назад

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 Год назад

You know that the air and ocean boiling away on one side of the planet would be global extinction anyway, right?

@DrakeAurum Год назад

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.

@VZBudgetBuildz 11 месяцев назад

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…

@coltonsimms763 Год назад

You Anton Petrov, and Sabine Hoffenfelder are the best! Watched your interview on Startalk, awesome man!

@subliminalvibes Год назад

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. 👍😎🇦🇺

@brandonlittle6444 Год назад

Matt and PBS! Is Life in inter Galactic space possible? The medium between galaxies is rarely discussed. Anywhere.

@pbsspacetime Год назад

Oooh. That's also a pretty good topic. Thanks for the suggestions!

@Flesh_Wizard Год назад

That would be the loneliest existence I can possibly imagine

@skierpage Год назад

@@Flesh_Wizardwhy? 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.

@RobertNicolo Год назад

Really loved this video! Pls do more like these!

@SonicPhonic Год назад

Thanks so much for the reliable and sensible information. We are lucky to have a stable planet, let's respect it.

@NewMessage Год назад

On the upside, my brain would get a lovely tan... straight through my skull, even!

@6Twisted Год назад

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 Год назад

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 Год назад

Asteroid could take a building out pretty quick. Earthquake is a bit slower if you are not in a rush.

@DrVictorVasconcelos Год назад

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.

@devinfaux6987 Год назад

Betelgeuse is currently playing a grand, cosmic variation of "Pop Goes the Weasel," only every note takes a thousand years.

@MacedonianHero Год назад

The religious say the universe was "designed for life". Really? Looks like life is a bug in our universe and NOT a feature.

@DrWhom Год назад

Well the universe is compatible with life, just about

@MacedonianHero Год назад

@@DrWhom Except for literally 99.9999999999999999% of it. Of which environments will KILL all life. Nice try religitard.

@waynesmallwood6027 2 месяца назад

Makes more sense if you study Probability.

@MacedonianHero 2 месяца назад

@@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 2 месяца назад

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.

@DragoniteSpam Год назад

Perfect timing, I just finished rewatching the GRB video for extra existential horror :')

@ender1598 Год назад

Another great episode... thanks!

@WrongDemographic Год назад

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.

@mattmaas5790 Год назад

This is swaggiest swag ive ever seen

@kimjongun8906 Год назад

Amen

@Pickelhaube808 Год назад

so swag

@thecrakp0t Год назад

Yeet

@clarambrosia9834 Год назад

@thebinkbink6349 Год назад

Great shirt!

@MC-wh3xm Год назад

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 Год назад

They both have silly accents and are pretty similar. Matt just uses less r’s and is more condescending.

@MC-wh3xm Год назад

@@stalexannSpacetime is wayyy less preachy though

@PhrontDoor Год назад

LOLing at the bright star staying still in the sky as time-lapse shows the other stars scrolling by ;) 00:30ish

@theanonymousseeker3952 Год назад

I like the "game over" shirt with the extinction video!

@artificercreator Год назад

Good work! This is super interesting! So, neutrinos can actually interact with matter under certain conditions?

@bengoodwin2141 Год назад

Not so much certain conditions, just an incredibly small chance

@sciencoking Год назад

The supernova just produces _that_ many neutrinos

@DrZedDrZedDrZed Год назад

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 Год назад

@@bengoodwin2141 Oh interesting!

@artificercreator Год назад

@@sciencoking Oh nice!

@Oosystem Год назад

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 Год назад

Yeah, I was noticing that too.

@djmips Год назад

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 Год назад

@@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 Год назад

Added to which this guy punctuates virtually every word with an exaggerated wave of his hands which makes watching him talk difficult !

@atothetop3779 Год назад

I’ve watched every single upload on this channel for the last 3-4 years multiple times

@user-he1yb7pl1w Год назад

When you start to think about all the destructive and dangerous things in the galaxy, you start to realize how lucky we are to be in such a quiet neighborhood.

@khatharrmalkavian3306 Год назад

Bro, you gotta be careful saying Betelgeuse repeatedly in a short period of time. Lori Lightfoot may show up suddenly.

@chekote Год назад

Why’s the supernova stationary in the sky? 🤔

@gleradon Год назад

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 Год назад

Whys the ancient hominid stationary under the tree? 🤔

@brandonlittle6444 Год назад

Noticed that too. ..

@white-bunny Год назад

Maybe it's in similar position of the north star?

@chekote Год назад

@@white-bunny that would make sense if the other stars rotated around it. But they’re all flying past it.

@FrancoGrimoldi Год назад

Absolutely wonderful, thanks!

@thepurpleenigma Год назад

My favorite part was the “we are fine -> we are dead” meter. 😂

@PeteOnTheBeat Год назад

Holy cow. This has been scary to me since we dodged a bullet this year.

@Trias805 Год назад

What bullet?

@fredburns6846 Год назад

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.

@fuffoon 3 дня назад

I liked the introductory story. It was warm.

@robbiejett1197 Год назад

Commenting to help the algorithm. Love these videos and glad pbs is still putting out these

@speckblue Год назад

Why isn't the supernova rotating with the night sky? :/

@battshytkrazy156 Год назад

IDIOCY

@TheEvilmooseofdoom Год назад

sloppy animation.

@yourguard4 Год назад

I tend to "illustration purposes", to show, how it would look like during night and during day. Because, both scenarios are possible.

@TactileTherapy Год назад

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 Год назад

@debrachambers1304 Год назад

Well, was it?

@TactileTherapy Год назад

@@debrachambers1304 Matt said 150 Ly for reg super and several thousand for hypernova. So yes i got it right 😅🙌🏾

@garybraithwaite448 Год назад

Just watched this. The concept of us being in a relatively quiet area, and if we were in the spiral arms we'd be in more danger, suggests a potential factor in the Fermi Paradox.

@robertschlesinger1342 11 месяцев назад

Excellent video. Very interesting, informative and worthwhile video.

@DeltaVTX Год назад

It’s pronounced: “Betelgeuse”.

@timmcdaniel6193 Год назад

Betelgeuse? Betelgeuse? AAAAHHHHHH!

@marchuthart3261 Год назад

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@marchuthart3261 Год назад

+1947

@marchuthart3261 Год назад

214

@EternalGamingNet Год назад

Very informative, thank you for the video!

@matgeezer2094 11 месяцев назад

The last year I've been getting into these vids. The physics and astronomy is at my level - I'm not a specialist but am well read. Often on popular science progs the level is too low. They assume people don't want any maths or moderately technical bits. End up looking at nice pictures but not learning anything - even wincing at bits you don't think done well

@cwwiss1 Год назад

Perhaps a better question is " Were supernovas responsible for some of the trigger points in evolution" ?

@GodIsADelusion Год назад

I mean, that's a completely different question. It's not "better."

@TheEvilmooseofdoom Год назад

Trigger points?

@EnglishMike Год назад

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.

@javadvashahri5439 Год назад

It is abit- al- jawza. The armpit of giant. ابط الجوزا. Although both names (hand=yad/abit=armpit)used frequently always, but "beatlguse" word is kind of derived from "abit-al-aljawza".

@DrWhom Год назад

Yeah I was wondering about that because it sits at what I would call the shoulder which is of course also pretty much the location of the armpit

@Rcoutme Год назад

Betelgeuse may be closer than you suggest. The amount of carbon fusion seems to be ending, which could mean that we could be within decades of the star going SN