Could This Star Explode Before You Die?

[@LaunchPadAstronomy]

🔴 Astronomers detect the brightest explosion of all time: kzbin.info/www/bejne/eKaxgnuwqayYa6M

[@CarlosSamuel-ms9ee]

It's refreshing to see someone post a video about Betelgeuse without a ridiculous hyperbolic title, that encouraged me to click. Very glad I did because you have a real gift for breaking things down for the lay person, detailed yet not overwhelming. It doesn't hurt that you have a pretty good voice for it either, haha!

[@LaunchPadAstronomy]

Thank you, I'm glad you liked it1

[@Kurzula5150]

Funny to think that if it does go off anytime in our lifetimes, that in actual fact it will have gone supernova sometime during the reign of the House of Plantagenets.

[@my-2-centstoday]

YES, Yes...this star has already gone supernova over 600 years ago. They are supposed to be science communicators, why can't they communicate clearly that we might "see" the event from our perspective. Miscommunication breeds ignorance.

[@lexacutable]

​@@my-2-centstodayoh come on, anyone following science news like this is most likely well aware of the fact that we see astronomical events delayed. having to talk about the entire thing in terms of "may have happened a few hundred years ago but within the next hundred years from our perspective" just makes the presentation unnecessarily awkward

[@petergreen5337]

Indeed

[@my-2-centstoday]

@@lexacutable Is this your first time on the Internet? If not, you know how thick people can be and how easy it is for some to bend and twist facts. Just visit a flat earther page and try that comment again.

[@lexacutable]

@@my-2-centstoday bruh, obviously there are a lot of ignorant people out there. But anyone who is in a position to get something out of this video is already not one of those people, and they already will know about astronomical time scales. Are you saying every video must cover these basic facts? So yeah, try your comment again.

[@jppitman1]

I`m glad you commented on this topic from an unpublished paper. My wife is a published biologist and she has told me that in the science world it can get very political as to what paper might get published and by whom. Which panel gets to decide? Is one of “peers” on a board competing against an author? Which personalities are on that editorial panel or board? Does any board member have any beefs with the chief author or any in the list of authors to set a worthy paper aside? Might they have something to gain by NOT publishing it and purloin some findings from a particular paper to publish their own. She said that her team once had an excellent paper to publish and more than a few journals turned it down. One journal editor, though, saw its scientific value and finally did so. She expects more scientists to publish their own papers on today`s social media, figuring, “Ok, forget journal politics and publishing delays and our ideas possibly getting stolen. Here is our paper; here are our data; here is our reasoning; and here are our conclusions. Prove us right or prove us wrong.”

[@LaunchPadAstronomy]

Some journals (at least in astrophysics) will seek out additional anonymous referees if a review is contested by the paper's author but the fact is that everybody is human and might be subject to one bias or another. So arXiv is kind of a good way to overcome that by making the paper public. Then again, if the paper is public and hasn't been refereed, it's no more likely to get published. On the other hand you do save on page charges that way :)

[@brucegoatly]

That's a very detailed yet very clear explanation. And very interesting too - thank you!

[@LaunchPadAstronomy]

Glad you enjoyed it!

[@Locut0s]

I find it astounding that for anything on the scale of Betelgeuse that any stage in its life could be on the order of 1 earth day! The Silicon to Iron stage mentioned here. That's CRAZY!

[@rameyzamora1018]

Great illustration of how the process of solar evolution occurs! Thanks for the insight.

[@LaunchPadAstronomy]

Thanks, I'm gad you found it helpful!

[@bazpearce9993]

Let's face it. No matter how many papers people write. It's going to be down to the star when it goes pop and nothing else.

[@philochristos]

The aliens living around Betelgeuse probably have no idea they are in some guy's arm pit. It makes me wonder what kind of constellation we're in that only outsiders know about.

[@Gruntphuttock]

Judging my our politicians, I could take a wild guess at where we're located; it stinks. 🤔😉

[@brandonlawson2460]

Or aliens also don't know,that small dim light they may see in their sky. There is another alien(us) talking about their star.

[@LotsofStuffYT]

If it does I feel bad for Zaphod Bebblebrox, his home planet is in this system.

[@mcclonen77]

love your show, keep up the great work

[@LaunchPadAstronomy]

Thanks, I really appreciate it!

[@EarlWallaceNYC]

I love the detailed analysis. This is tough going. But, as with the gym, "No pain, no gain"". Thanks, keep it up.

[@unfixablegop]

"Could This Star Explode Before You Die?" It may have exploded before my birth.

[@KristianWontroba]

Sane and detailed coverage of this exciting story! Thanks!

[@LaunchPadAstronomy]

Thank you. I try to keep it real as best I can :)

[@khumokwezimashapa2245]

Man. I feel like it has already gone, but we obviously haven't seen it yet due to the delay with lytspd

[@vladimirmihnev9702]

Just found this channel. And subscribed, I really don't have much more to say. Except wishing you good luck and to keep making videos like this one! You deserve more subscribers but

[@LaunchPadAstronomy]

Thanks and I'm glad to have you along for the ride!

[@RanaFeueR]

Thanks!

[@LaunchPadAstronomy]

Thank you so much, I really appreciate it!!!

[@stargazer5784]

It's helpful for people to remember that we have never had a chance to observe the progenitor of a type 2 supernova up close and personal prior to an explosion. We can't be sure exactly what to look for. The rotational rate of the core, if it's very fast, could have a dramatic impact on the time frame for any apparently 'imminent' event. Many of the models I've read about before concerning core activity in stars assume a non rotating or slowly rotating object. We shall see...

[@LaunchPadAstronomy]

Yeah that's something I'm wondering about as well. I spoke to it briefly towards the end of the video but so far I don't think anyone has ever fully modeled it yet. Then again, we don't have a complete model of a non-rotating massive star either.

[@NewMessage]

I hope it blows within my lifetime. Just to say I saw it.

[@geoffgeoff3333]

I'm curious as to why you would think saying that you saw it would make you feel special? Being a sentient lifeform in the universe means you're already quite spectacularly special.

[@NewMessage]

@@geoffgeoff3333 I didn't say it was to 'make me feel special'... I just wanna see a supernova with my own eyes. Call it vainglory, perhaps.

[@jasjitsingh5457]

Your videos are fantastic. Full of true expert knowledge and you never resort to click and bait headlines but instead share genuine content. Love your channel 👍👍

[@LaunchPadAstronomy]

Thank you very much, i really appreciate it!

[@DerkMiester]

Great explanation, I really hope that Betelgeuse goes off in my lifetime, what a sight it would be!

[@douglaswilkinson5700]

" ... the star's interior implodes and *rebounds* in a supernova ..." We'll said! Many channels get this wrong.

[@andromedagalaxy7010]

Great work, really came across with lots of information

[@LaunchPadAstronomy]

Glad you enjoyed it!

[@audience2]

Hope it does. A close but not too close Supernova Explosion would be fantastic.

[@moneky]

"go ahead, make my millennium" "nice f@#kin model" - Betelgeuse

[@brucegoatly]

Nice star - shame if something happened to it...

[@JenniferA886]

Great vid, love your content 👍👍👍

[@LaunchPadAstronomy]

Thanks!

[@physicslover1950]

As always, a highly informative video from your channel giving deep insights... At 3:02 the animation you showed shocked me. Can you please explain why different regions of the same star undergoes different processes i.e., one region is expanding and the other is contracting... ? Second Question: Acknowledging the fact that JWST can't direclty look at Betelgeuse as it will saturate its detectors. Will somewhere in the near future JWST will look at Betelgeuse by using a coronagraph to hide the intense starlight and see and examine the dust clouds around Betelgeuse in more detail? I personally think that STScI should accomplish this before Betelgeuse really gets supernova because it will othervise obsecure the view of its surroundings... Third question, as JWST already uses its coronagrphs to block the starlight in order to make the orbiting planets visible, can JWST use its coronagraph ( or coronographs if there are more than one) to block both the starlight and the planet's light to hunt for exo moons if any? Please reply.

[@dmeemd7787]

SUCH a great explanation!!

[@UrbanVanlife]

Still the best spacey stuff channel out there

[@LaunchPadAstronomy]

Thanks mate.

[@yoga_with_pallavi]

Love this channel ❤️

[@staffordbiggs4966]

Great Video get ready for Supernova the carbon is getting less

[@justexactlyperfectbrothersband]

Brilliant as ever Christian, I woke up feeling like I'd been busted for smiling on a cloudy day and saw you'd posted your video, now i feel like skipping through a lily field!

[@LaunchPadAstronomy]

That’s what happens when the bus comes by and you get on…:)

[@petergreen5337]

A very good and helpful documentary. Thank you very much.

[@NonBinary_Star]

8:02 @LaunchPadAstronomy How come pulsars or neutron stars dont far exceed their critical rotation, is it because of their insane levels of density (gravity)? Is there record of a neutron star or pulsar ever exceeding its critical rotation and flinging itself apart?

[@douglaswilkinson5700]

Betelgeuse started as a spectral type O *main sequence star* luminosity class V and *not* a "blue giant star" (i.e. luminosity class III.)

[@LaunchPadAstronomy]

If you regard an OV star as a "dwarf" then sure :)

[@douglaswilkinson5700]

@@LaunchPadAstronomy Technically if a star is fusing hydrogen it can be called a dwarf. The massive BI253 -- O2V -- is fusing hydrogen so it too can be called a dwarf ... however stellar astrophysics shy away from calling spectral type O and B main sequence stars "dwarfs." (R136a1 is also fusing hydrogen but I've never heard anyone refer to it as a dwarf!)

[@stevecohen6723]

I know you have heard it a thousand times, but I dig the Grateful Dead vinyl front and center in your videos.

[@dandurkin9735]

Fantastic video - thank you!

[@playeryoshi252]

Excellent video! Thanks again !

[@geraldbeall7734]

The light we currently observe from Betelgeuse was emitted by the star over 642 years ago. If we on Earth observe it going supernova today, it actually took place 642.5 years ago (January of 1381).

[@Gruntphuttock]

I won't be here, but keep an eye out during mid 2049. 👍

[@GeoStreber]

Maybe stupid question: Could the high angular velocity of Betelgeuse's rotation point towards its core contracting as the fuel starts to run out?

[@LaunchPadAstronomy]

In the traditional model, the core contracts when it isn't hot enough to fuse the next heavy element and cannot exert enough radiation pressure. But that's a very simple model indeed. Rotation does play a role but I'm not knowledgeable on exactly how, beyond what i said in the video :)

[@komolkovathana8568]

3:07 "...star is complex..." B'cuz fusion/fission are paired interaction of RECYCLING/REGENERATING, never-ending (easily) processes. Fusion will not directly produce/give -off energy/heat, but fusion prepares material, such as helium by natural compression of star 's tremendous gravity (which is for free by nature), but in ultra-heating, Super-boiling environment, the convective current then brought boiling Helium "UP" to where the Compression (pressure) gone relaxed, the Helium nuclei Explode, broken-down into original Hydrogen (proton/Neutron) state. Give-,off tremendous heat, rays; UV , X-ray, Gamma-ray, (cosmic ray) etc. Waiting to be brought-down by convective current and be compressed again, then explode and give-off energy, repeatedly. These Regenerating and Recycling interaction will going on and on, seemingly forever.. eternity. But current Science or Cosmology tells the age of each measuring Star, their past and future, they said, are all predictable ?? Estimatedly, i wonder.

[@komolkovathana8568]

Challenging me to explain supernovae, by my (crazy) theory (?!?) I will try, let see...(3 hrs passed)

[@r107560sl]

If we see Betelgeuse exploded today, it exploded several hundred years ago.

[@malcolmabram2957]

The star is part of Orion. I show Orion to my kids, the red star Betelgeuse, and the blue star Rigel. Hope it does go bang in my lifetime.

[@Mr.McPoops]

Great video!

[@LaunchPadAstronomy]

Thanks!

[@MadderMel]

From what I have seen and read , when it does go Supernova it's going to be spectacular !

[@anthonyhahn8751]

Good information

[@dynamicflashy]

Your voice sounds so much younger. Good video

[@LouseGrouse]

12:50 i like how this sentence could be misconstrued as saying Betelgeuse is actually very small heheh

[@mkang8782]

How long would it take for Dr. Saio's paper to get peer reviewed (if that is even likely to happen)?

[@LaunchPadAstronomy]

I'm not sure but I have a feeling it's not going to get through peer review as-is.

[@c0rr4nh0rn]

@@LaunchPadAstronomy Given the comments from other groups or due to inherent concerns? I know I would want to address some of the outside points which would alter the paper but that wouldn't be related to peer review.

[@Youtuber-ku4nk]

Great video as always. How are you making all the animations?

[@LaunchPadAstronomy]

Thanks! Most of the graphics are from third parties. The ones I make are usually either done in After Effects or Keynote.

[@woody5109]

Interesting, it’s encouraging to hear scientists are thinking outside of the box, very brave. Love your videos, I count down the days to the next one.

[@LaunchPadAstronomy]

Thank you very much!

[@bastiaanstapelberg9018]

En wetenschappers die out of the box durven te denken zijn er niet veel van.

[@kadourimdou43]

Given a telescope powerful enough. Could sound waves be detected, that would tell us what was going on inside the core?

[@LaunchPadAstronomy]

A telescope won't detect sound waves in the interior, but tt would certainly allow you to see the convection cells.

[@kigozimuhammad]

@@LaunchPadAstronomytrue cuz sound to be recorded it needs a medium. Unfortunately between us and betel it’s juicy empty space. Any sound made would be unheard of like a tree falling in a forest .

[@jaceware8808]

Not through sound waves but other means, they have determined that the star has already run out of hydrogen. After the hydrogen in the star's core is exhausted, the star can fuse helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Up to this point, the fusion process releases energy. The formation of elements heavier than iron and nickel requires an input of energy.

[@flyinandjammin]

"If Betelgeuse were to go supernova while I'm looking at it, I'd be inclined to give (him) the nod." 😂

[@galaxia4709]

but life wants to predict when, also for gaining insight

[@morganghetti]

Man that would be incredible to witness a super nova. Throw on a 79' Dark Star and just enjoy.

[@theFatTubist]

How do you find the rotation speed?

[@zapfanzapfan]

Doppler shift, one side coming toward you and one side moving away giving you a blue shifted and a red shifted version of the same spectral lines.

[@theFatTubist]

@@zapfanzapfan Ahhh, right! Thanks

[@Blablablabla1ify]

Another excellent video! 😍 Is it possible to answer here in the comments why a star below about 1,500 solar radii can’t pulsate at 2,200 days as a base period?

[@LaunchPadAstronomy]

The idea is that the larger the star, the further away from the core its outer layers are. The further away the outer layers, the weaker the gravity, and so the slower they fall during a contraction. Not only that but they have a greater distance to travel before they are heated/pressurized again and begin their re-expansion. So the practical upshot is that the larger the star, the longer it should take to pulsate. But there's still a lot about massive star evolution we don't fully understand, and Betelgeuse appears to be even stranger than the basic models would require.

[@Blablablabla1ify]

Thank you! Sooo many follow up questions… too much for here 😂

[@grotto5416]

I'm not the only one who keeps hearing Beetle-juice, right? RIGHT?! Great, informative and straight to the point video as always

[@JCO2002]

Very good, thanks.

[@richardmercer2337]

I'm counting on it! 👍

[@richardmercer2337]

And JUST ONCE, I'd like to see someone spell it "Beetlejuice"...

[@Ashraf.515]

🌞boom💥

[@Ashraf.515]

Sopnova

[@paullukens7154]

Unfortunately, 99% of this was over my head. However, I'd like to complement you on a wonderfully clear voice, beautifully clear presentation, and an obviously well thought-out video. Exceptional video my friend. (retired Biology teacher)

[@LaunchPadAstronomy]

Wow, thank you!

[@BanjoGate]

Is it 'to fuze'? Not 'to fuse'? Perhaps a typo in the captions

[@LaunchPadAstronomy]

Funny thing is that the transcription originally came out as "fuze" but I changed it to "fuse" because that's how I remember it being spelled in this context. And I'm probably wrong :)

[@andyharris3084]

It's already popped. We are just waiting for the light to reach across the 630 or so light years between us.

[@rwarren58]

I'm sick of waiting. "C'mon Betelgeuse. Explode Already." - Blue dot Dweller

[@CaribouDataScience]

The question will the light from the super nova reaches us before I die.

[@Vector_Ze]

I'm 69...hurry up, daggnabbit.

[@Sacto1654]

I htink despite the star being around 427 to 724 light years away, there is always concern that the star going supernova could send out much more radiation than people currently estimate. The initial blast of gamma rays is one thing, but then then are additional radiation bursts that could arrive several years afterwards.

[@ali_aram]

Is it possible that we measure the accurate diameter of Betelgeuse using eclipse of a background star with Betelgeuse?

[@kurtbogle2973]

After reading the report on Betelgeuse and finding out that there was debris between Earth and Betelgeuse. How do we know that it wasn't actually this bright to start with. With no way of telling how much light was blocked by debris there remains the possibility that no change has really taken place. Wait and see ,seems to be the smartest thing to do.

[@kylethompson1379]

If he's right, Betelgeuse has already exploded in it's own frame, and we're just waiting to see. Weird to think that Orion may have lost his shoulder.

[@munwarumrani3465]

Make a video on mars colonization with latest updates

[@michaeljaneschitz-kriegl9598]

At 9:40 : 10^(-5) Year is 0.00001 year, not 0,00005 years. And 0.00001 year is 315 seconds.. Just to be correct..

[@LaunchPadAstronomy]

I'm smacking my forehead!

[@michaeljaneschitz-kriegl9598]

@@LaunchPadAstronomy Well, a small glitch.. Very nice and interesting video, though!

[@LaunchPadAstronomy]

Well thanks. Still, I *know* 10^-5 is 0.00001 and yet...ugh :p

[@michaeljaneschitz-kriegl9598]

@@LaunchPadAstronomy I know you know, but many just believe everything they hear.. A few seconds to Supernova doesn't make much difference BTW.

[@LaunchPadAstronomy]

What's a few 10^-5 seconds among friends, anyway? :)

[@CoolDudeClem]

It probably already has, we just don't know about it yet.

[@djfrenzy69]

Anyone ever think it already went ''boom'' or super nova over tens of thousands of years ago but the light from it has not reached us yet???

[@lidarman2]

I guess if is explodes before I die, then it has already. Or do we have to see the light to decide when time zero is? :-O

[@enlightennobleman8842]

i want to see a supernova before i die.

[@Nightscape_]

So wait for another 100,000 years. Got it.

[@stnkfngr6109]

5 to 7 million light years away means what ever happens has already happened, we just can't see it yet

[@phoule76]

Winnie the Pooh knows a thing or two about angry clouds.

[@damocles8417]

That swarm around Betelgeuse is just a few hundred-million alien probes waiting to use the supernova to project themselves throughout the galaxy. Why waste a good wave?

[@metroidhunter965]

How cool would it be though to see a star go supernova in our lifetime? I really hope the critics are incorrect.

[@PlanetEarth3141]

I only want to see that pretty giant red star blow up. Talk about a giant firework. After that we'll also know a lot more.

[@andrewbradbury8527]

Even if it goes supernova, it won't look much different if its 600 light years away in my opinion

[@Kragatar]

It would be really weird if it blew up and ruined the iconic Orion constellation.

[@jimomertz]

So why don’t they just point JWST at it and get a spectroscopy? Wouldn’t that tell you if carbon is present? And how much?

[@LaunchPadAstronomy]

Even if JWST could observe it (it can’t really because Betelgeuse is too bright for the detectors’ rated saturation limits) we wouldn’t be able to directly observe the core.

[@chrissmith7669]

Wouldn’t seeing it explode mean it happened 600 plus years ago?

[@LaunchPadAstronomy]

Everything we see in the universe happened in the past.

[@lineboss58]

It already has exploded it just has not reached us yet because of the immense distance involved.

[@P0LARice]

Isn't the real question "Did this star explode before you were born"?

[@zapfanzapfan]

Beetle juice, beetle juice, beetle juice! (Come on, explode already!) 🙂

[@jellysquiddles3194]

You mean: Has betelgeuse already died and will the light of it's death reach us within our livetime?

[@bernardoramos1412]

If I were an Astronomer etc, I’d study what’s BEHIND AND AROUND this star because AFTER it goes supernova, forget it!!!!

[@DaveCompton5150]

I send "blow up Betelguese" mojo to the star every day!

[@hurithinkbefore1340]

North east shoulder?

[@LaunchPadAstronomy]

Yep!

[@beefgoat80]

Knowing my luck, it'll go the day after I die. 🤣🤣🤣

[@skatersurfersnowboarder3545]

Soon in space time is basically anytime between now and 10,000 years or so from now 😅

[@ResortDog]

Isn't it a much more urgent concern that our own sun mini-novas regularly every 12,000 years as proven by the geological record?

[@bjt81366]

For all we know it could have went supernova 200 years ago. We would never know.

[@barry4159]

Many say it already has!

[@robertvarner9519]

I'll be dead long, long before this star blows up.

[@hallieboy]

There has been too much emphasis in infrared telescopes....more visible light ones are needed