What Would Happen If Betelgeuse Burst Right Now? 

If we see Betelgeuse go supernova now, it actually happened roughly 500 years ago. 🙂

If it exploded right this second.........nothing. I wouldnt live to see it because of the time it will take for the light to reach us.

A star went supernova in the Pinwheel Galaxy visible in 2023, I'm lucky enough to have taken a picture (as did many others) of the Galaxy prior to and after the supernova. It only looked the a new star popped up but it was really cool to see with the knowledge of what it actually was.

We'd all wait 700 years to have surprised expressions

Astronomers, the ones who know what they're talking about, are saying that it's too far away to hurt us.

When you look at the constellation Orion, at Betelgeuse, you see it not as it is now, but as it was centuries ago. It takes light that long to get from Betelgeuse to here.

I was taught that it's to far away to have any real effect on us. Although, it would be bright enough to light the night sky for two weeks. It would be lit up like dawn.

Your video title promised some wild speculation on what would happen to the Earth today if Betelgeuse went supernova... And it did not deliver! I should have known better when I didn't see an apocalyptic thumbnail image for the video.

There will be a bright light in the night sky. There will be a brilliant light show for anyone here to see. Over a period of months to a few years it will gradually fade from view. Beyond that, we are in no danger from Bettalguese.

With my luck, I'll probably be having a nap and miss the whole thing.

In the universe there's no such thing as now.

It's so fascinating how we haven't even really left our own backyard yet we already know this much about the life and death of certain objects across the cosmos. It's truly impressive.

when you have black holes and neutron collisions eclipsing its host galaxy by folds of magnitude it truly puts into perspective our tiny little star in how easily life can be extinguished by such an explosion.

It won't do a thing except give our posterity a short but spectacular show.

"now" in astronomy means mostly our lokal time when we know or see it.

This gives you an idea about distances in space. Light can travel around the earth about 7 times a second, betelguise could of already exploded before Shakespeare was born, the light just hasn't reached us yet 😮🤯

It might have already gone supernova but since it's about 640 light years away, we wouldn't see its light image for (640 - x) years. x equals the distance in light years the supernova light image has already traveled in the vastness of space.

Before working in astrophysics were you the voice of Huckleberry Hound? That would be so cool

If Betelgeuse went supernova today, we wouldn’t see it until about 640 years from now.

Interesting and informative. I would suggest one thing, though. When you cut to captioned illustrations, they are not on screen long enough to both read the caption and look at the picture. Either give a few seconds longer to each slide, or remove the caption and speak it, while the viewer looks at the picture. Other than that minor point, this was most enjoyable.

great video, thanks for posting

Van Gogh inadvertently captured a supernova in his painting “Starry Night”

At 650 light years away, nothing would happen except a very bright spot in the sky for a brief time.

We would know nothing for over 500 years since it's over 500 light years away.

It's 2 months later, and watching it happening live online now

For some reason I always trust the British accent for narrating space/scientific videos over the American....

Great video first time seeing your channel in my feed liked and sub’d…. When bettlejuice does go nova do we know if there are any planets in its orbit and will we be able to detect the impact on them??? Many thanks for sharing 🍻👍

In answer to the title question, as far as we are concerned, not a lot. Because even light takes time to travel the vast distance, it would take a number of years for that light to reach us. So, Betelgeuse could explode now, and we wouldn't see the light of it until it reached us... As for the tag, 'We're not ready!', we don't have to be. Betelgeuse is too far away from us for any harmful effects to reach us. At best we'd have a second bright light in our sky during the day, but that's about it. That and the fact that the constellation Orion will forever be missing a key component, that is.

Thank You for the Great Tour

Shouldn't we be able to witness countless supernovas at all times due to the sheer volume of stars out there?

Excellent narration!

724 light-years away from Earth. We're safe, completely safe.

We wouldn’t know about it for quite some time. It’s that whole speed of light thingy. 👍

AWESOME!! Can't wait!!!

The probability that supernovae themselves can induce detectable ripples in spacetime detectable in gravitational waves is pretty unlikely to occur and to be detectable would likely require a LIGO type observatory in space on a magnitude of close to the Earth - Moon orbit. Ninety-Five percent of the mass of a Super Nova stay relatively close to the star during the gravitational collapse of the star and resulting expulsion of the outer layers of the star resulting in much of the mass collapsed into a white dwarf but still gravitationally stable in essence with relatively much the same spacetime gravitational annealing in place but expanding only due to the materials shed.

Great video❤

"What Would Happen If Betelgeuse Burst Right Now?" Absolutely NOTHING to us, at least not until 642.5 years from "right now".

I recall reading an article that stated Einstein never called general relativity a theory , it was a German scientist in 1906 who said it was !

Well made video!

Obviously you think betelgeuse is a balloon

It would take radiation traveling at the speed of light to reach us from Betelguise exploding about 752 light years. Any blast debris would take thousands of years to reach Earth.

If it exploded just now, what would happen to the earth? Nothing right now! Betelgeuse is some distance from us, Astronomers suggest 422 +/- lights, but the distance is debatable. Some astronomers suggest that the earth is too far from us but honestly that can be debatable. Let’s say it did blow and it has since gone supernova, we will not know for 500 years. However I saw a story about Polaris the north star, that star is acting up. But if we were much closer, better pray….

The dimming observation happened 5 years ago. That is hypothesised to be dust emission. The question is how long does a supernova take to happen once a significant material emission has taken place? If this question can be answered then the supernova time could be guessed. The whole thing is like the date of release of prepaid games. Speculation.

If people could stop using "theory" when they actually mean "hypothesis", I would be so happy.

Are the extra dimension springs for space time to rebound

What happens if Beetlejuice go supernova, ONE HELL OF A LIGHT SHOW.

You would see it in around 645 years because that is how far away it is in light years.

its light is fluctuating again , the current hypothesis is its boiling

We live in a universe where objects are placed unbelievably vast distances apart, and the speed of light or rather the speed of electromagnetic radiation is such that it takes massive amounts of time for this radiation to travel between these sparsely spaced objects. So Beetlejuice is over 600 light years away from planet Earth. Anything that happens in current time at Betelgeuse will take over 600 years for us to observe it. It could have already had its supernova, but the electromagnetic radiation that we would observe of that event hasn't gotten here yet. Everything that we observe about our universe is in the past.

I work graveyard shift and watch it nightly hoping I will see it as it blows. 😱💥

Though Beetleguese is unstable, it could last another 1.000 years, or even 10,000 years or 100,000 years before going Nova. Nobody can predict when it will explode .

Remember, the idea that red giants go supernova remains an unproven hypothesis based upon unproven theories of stellar evolution and computer models. I’m not saying it’s wrong, just that we don’t know it’s right. There are alternative theories.

We should have a few years warning by monitoring any untoward effects on Sirius.

Why are so many bot channels talking about betelgeuse recently? It's fluctuating luminosity was in the visible spectrum, but not the infrared. This means it's energy output was normal and it "dimmed" because dust or debris blocked visible light. Another channel wins a "Do not recommend" award.

"Burst"? It's a star, not a pimple.

If it explores right now, it will hit the earth in 500 years time and we will be long gone by then and flying around in space ships

You kidding? We aren't ready if it freezes, and a water pipe bursts.

If it happened right now, we wouldn't see it. Those in approximately 700 years will see it though

05:07 The star emitted this large dust cloud roughly 700 years ago and we saw it in 2020 because of that huge distance. So if Betelgeuse bursts right now we wont notice for another 700 years. But if we were to see it in our lifetimes it would be quite a spectacle, something our modern human society has not experienced yet.

If Betelgeuse decided to burst right now, you would not see a supernova for around 700 years 🤷

A spectacular spectacle.

None of us right now would exist. If we did (maybe) witness it, we would be perfectly fine. Would see a bright light show which would be spectacular and would go down in the history books.

🙇‍♀️”..Amazing!”

If Betelgeuse burst right now we wouldn't even see it for 700 or so years, provided humans are even around then.

Astronomers think that Betelgeuse is about 600 light years from Earth. That means if that star exploded NOW, we on Earth wouldn't see that until approximately 2624!!!!!!

We wouldn't know about it for 10,000 years.

At such distance only a hypernova or GRB could be dangerous, but Betelgeuse doesn't have the mass and rotation rate required for both and will explode as a standard harmless IIP supernova, not brighter than the full Moon.

Space and time become other things when taking the scale of galaxies and the universe into account. "What would happen if Betelgeuse burst right now?" - well - we wouldn't know for another 640 years . . . so, who knows - the whole thing could've gone off anytime during the past 600+ years - so, "right now" doesn't mean much . . .

If Betelgeuse burst right now we would not know for 500 years. What is meant by "being ready," I have no idea. This I am sure of, politics would not let us "get ready," if there were something we could "get ready." I do not think there really is anything we can do.

Betelgeuse too far away to cause us any harm. It will just be very interesting to see.

It would take many hundreds of years before we became aware it had happened. It might have happened 1,000 years ago .

If it exploded right now, we wouldn't know it happened in my lifetime.

Last I checked, Betelgeuse was tilted the wrong way for a supernova to affect Eearth much, at least as of now. If we were looking into one of its poles when it went off, we'd be in trouble, though…

Elements heavier than iron are produced, but not distributed by supernovas. For that you need kilonovas.

I think if the star were to start to go supernova, it would take centuries to do so

It would be nice display, especially in the evening.

If it happened now, it would be up to future generations to deal with. I'll leave it to them. 🇦🇺 😊

**Science, especially Astrophysics, is The Universe Trying to Understand itself**

Why dies the narrator say type "eye" a and "eye" other letters, but when he speaks of Type II suoernova, he then switches to numbers, saying two instead of double "eye" or "eye 👀 eye." Strange.

About 6 months ago, I was out with my family walking the dog, when I saw a star slowly get brighter, then rapidly accelerate its brightness until it got quite large and bright then dimmed to nothing. I thought it was something like a supernova, but I did some searches in Astronomy news and saw nothing. Now I think I hallucinated the whole thing. I have no idea. By the time I could say something to the family, it was already gone. I wish I knew what it was. I’m a retired meteorologist and amateur astronomer with an 11 inch Cassegrain Telescope. I’ve had my eyes on the sky, night and day, all my life. I’ve never seen anything like that.

They are telling us that Betelgeuse will go nova this year. The truth is No, Betelgeuse is not expected to go nova this year. The timing of Betelgeuse’s potential supernova explosion remains uncertain, with estimates ranging from potentially happening in the next few decades to possibly taking up to a thousand years. While there have been fluctuations in Betelgeuse’s brightness and some studies suggesting it could be nearing the end of its life cycle, there is no definitive timeline for when it will explode as a supernova. Therefore, the idea that Betelgeuse will go nova this year is not correct based on current scientific understanding.

If Betelgeuse explode 600 years ago then we'll see soon. If today than not even my child of my child hasn't change to see it.

For every minute that passes by here, 60 seconds goes by in Africa

If it burst right now we'd have 642 years to get ready. However, if we SEE it burst today....

Well, Betelgeuse is 700 X 6 trillion miles away, let me calculate when to get out the marshmallows.

Sorry everyone, Betelgeuse have already gone Supernova. We will know when we feel the effect of it.

Well, right now as others pointed out Nothing! And By The Way, stop calling this star Beetle Juice, It is called Betelgeuse, You don't call the Polar Star Polystar do you? So call this star by it's right cataloger star name please. The Red Super Giant is about 580 to 600 light years away in Orion, So even if it went up now it would be 580 to 600 years if the blast wave was going at light speed before it even got here in the Sol System. and even then no problems as by that time the wave would have been almost nothing in strength. But since the blast wave be most likely only going at the most 10% of light speed it would take Thousands of years to get to our star system. And any Neutron star or Black Hole left after the Super Nova would also be so far from us those too would be no problem. So no no problems for our future humans. Since none of the possible Giant Stars out there that can go Super Nova are anywhere nearby us, We live in a stable part of the Galaxy. If We don't then we would not be here alive like we are.

if it went bang right now we wouldnt know, its like that dimming it had not long ago for us happened around 500 years ago

It would be a spectacular spectacle!

there's no such thing as being "ready " in this context .

It would be like a super slow motion version of the Austin Power's scene of getting run over by a steam roller. LOL. NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO.....

God make this earth for everyone to enjoy life i think I , my kid and My love and other peoples to has the right to study all enjoy life am now 43 years old i want to say that even want learn how to bake bakery or enjoy swimming was to difficult for me i want to study master degree also to difficult for me i know everything what happen to my kids and her mom and other people got bully my love also got bully all that happen to my life do u think I want to stay on this earth . it enough for me i dont want my kids her mom to crying with non sense thing . Everyone was not happy with this situation. i love my kids and my Love as you all l

I understand that astronomers say that gold is produced not buy a supernova but by neutron star collisions

To answer the question posed by the title: if Betelgeuse burst right now, then it would burst right now. And it would take 500 yrs for us to see it because it’s 500 light-years away from us.

well if Betelgeuse Burst right now... We wouldnt know about it for a loooooooooooong time:D

Just don't say the word "Betelgeuse" three times, and we'll be safe.

We don't need to be 'ready' - it's too far away to materially affect our Solar System.

RU-vid really needs to have a rating system that reflects viewer interest based on how long they view the video and likes vs dislikes. This video actually has nothing to do with the title.

650 to 700 X 5.88 Trillion miles. (A light year) We're in absolutely no danger from such a distant star, even one going supernova.

This video told of what happens when a star experiences a supernova explosion and what the cosmic particle emissions from a supernova could do to any nearby planet's biosphere and atmosphere. It would have been interesting if the video how Betelgeuse going supernova might impact Earth, 600 or so years after it went supernova.