Simon is real unlike dark matter. Dark matter is just an excuse to explain why their calculations was wrong. Instead of saying like a normal person 'hey my math doesn't add up maybe I should check it again' they went and said 'hmmm is my math wrong or the universe? The universe'
@@craigh5236 umm no, dark matter is an observable phenomenon which we can see affecting clouds of dust and gas, maybe you should do some more research ... Dark energy however, that could be magic or fairies for all we know at the moment
@@craigh5236 in college I tried to blame the universe when they said my math was wrong. Since I was an undergrad and a non-math major the prof blamed me. I still suffer the effects of that emotional scar, but back then nobody gave a 💩. I am so glad that education now takes into account student’s feeling’s. Today we are discovering new genders faster than anytime in history. Back then individual rights stopped at the others persons nose, now individual rights stop at the other persons feelings no matter where in the world they may be and offenders are publicly shamed or put in jail. It is a great time to be alive.
The image at 11:29 isn't a void. It is the nebula Barnard 68, which is a dust cloud that blocks the light of stars behind it. It is often accidentally used in place of Bootes Void, which is one of the least dense areas of its size in the universe.
Interesting you are the 1st person I ever heard mention it. No one have ever gave an explanation like that. I can see how that would more sense than a void . However , that is a extremely large dust cloud. So wouldn’t that be one of the biggest objects in the universe
Hi Simon, I don't find that you make mistakes often on your shows and I very much appreciate your content. THe Milky Way is approximately 100,000 light-years in diameter and not 50,000 like you mentioned. You also stated that Andromeda is about 100,000 light-years across from end-to-end when in fact it's 220k light-years in diameter. Keep doing the great work you're doing and cheers from Canada!
I think you mistook radius for diameter. The Milky Way and Andromeda are both twice as wide as you state (7:30). If you had said "from the center to the edge" instead of "from one side to the other" you would have been correct.
@@antoanthony3400 True. My comment was more about mistaking radius for diameter. It was stated that "Our galaxy is roughly 52,000 light years from one side to the other." This is closer to a clean factor-of-two mistake than the mistake about Andromeda. Andromeda is neither 100,000 nor 200,000 light years across, but the mistake of confusing diameter and radius is the same. I'm trying to give an otherwise good video some leeway.
I think you meant 6 hours instead of 6 minutes to travel the circumference of Canis Majoris at light speed. Light doesn’t even make it a portion of the radius in that time... 8 minutes from the sun to earth, and 43 minutes to Jupiter.
With all that update lag it is really amazing how an object can be coherent. It fascinates me to no end that the universe works the way it does with this slow speed of light.
@@savagesarethebest7251 Time is relative to the observer - like how flies perceive time at 1/4 the speed we do, and since information can only travel at the speed of light a photon(light) would not "experience" time or anything whatsoever. We're just not operating at the timescale required to observe the true majesty of the universe, sadly.
While you're closer to the correct result, it is actually closer to 28 hours to circumnavigate VY Canis Majoris. Reasoning being that it takes roughly 8 minutes and 20-something seconds for light to reach Earth from the Sun, and said distance is 1AU. Jupiter is, as you mentioned, out around 32AU. So, using the circumference formula (2r*pi), you get 32*2*3.12 = 200.96. Multiply this by 8.34 (some rounding necessary), to get 1676.01 minutes. Divide this by 60 to get the hours, which come out to just under 28.
I was thinking the same: "wait, isn't it 8 minutes to reach Earth from Sun at the speed of light? How could the orbit of Jupiter be shorter than that distance?"
Fun, informative video Simon, but Dark Energy and Dark matter are two separate things. Dark energy is not a subcategory of dark matter like you suggested.
@@Michael75579 And if Jupiters gravitational pull is strong enough to pull our moon away from Earth a few centimeters a year, then why isn’t it strong enough to pull Mars out of its orbit? Inquiring minds want to know.
It takes 8 minutes for light to reach 🌎 from the 🌞, so if the star at 4:12 is as big as the orbit of Jupiter I think it would take more than 6 minutes for light to go around it's circumference.... I hope some body is getting flogged down in the basement for these egregious errors!! My perception of you as infallible is now ruined Simon, we'll spare you the flogging...this time. Bahaha....
@@petercozzaglio6070 Because it's not Jupiter's gravity that's causing the moon to recede; it's conservation of angular momentum. Tides are causing the Earth's rotation to slow, and so to conserve angular momentum the moon has to orbit further away. Jupiter's gravity does affect the solar system - it's largely responsible for cyclic variations in the exact shape of the Earth's orbit for example - but it doesn't affect the moon the way the video claimed.
Even if some other people are writing all the scripts for these channels editing and everything else Simon really does put in a colossal amount of time into alls the videos he’s doing pretty much every day
Great video, one glowing revision -Circumnavigating Jupiters orbit at the speed of light would take you more than four hours. A star larger than Jupiter’s orbit would take even longer, much longer than six minutes.
Nice video! One comment.. on that large galaxy. Theres an estimate for central black holes mass given the mass of a galaxy. That's the basis of the thought of the galaxy having a really large blackhole. Its a common misconception that we are gravitationally bound to a central blackhole. While some things most certainly would be... most objects in a galaxy are not bound to the cental black hole. Its in the center because heavier objects tend to migrate to the center of mass. For reference... the gravity you experience from Sagittarius is so stupid small... you will experience something insane like 1 million times more gravity just sitting 3inches away from your significant other. Its so insignificant its not worth considering unless your basically taking the most sensitive gravitational measurement that has ever been taken. If you were at a standstill and Sagittarius was the only thing pulling on you. It would take about 25 thousand years to be going at blistering speed of 1mph. If we were in fact gravitationally bound to our black hole... we would orbit so stupid slow it would take 1000s of times longer than the universe has existed to make a single orbit. We travel faster than that. Fun thought... an ant orbiting around the earth at basically satalite distances pulls harder on earth than Sagittarius a. An ant... Which also suggests ignoring atmosphere... theres a point where if the ant is close enough the ant could steal earth from Sagittarius and the earth would "orbit" (using that term extremely loosly.. thats not accurate) the ant instead of Sagittarius providing its only earth, an ant, and Sagittarius. Probably not really but basically sneezing while having your face pointed up could push earth away from Sagittarius a. Or at least would over come its gravity. Again. Ignoring atmosphere. Thats basically how insignificant Sagittarius is gravitationally to us. We are not orbiting at all. Black holes do not keep galaxies together. If they did... they'd be stupid small. There influence in today's universe is too insignificant.
"cos watch time's important for me" that's fair, and i appreciate you making this explanation as enjoyable as possible for us Way to go, Simon Whistler
Simon when are you going to start a channel that deals with stuff pertaining to everything about the universe? I would love that. Some of my favorite programs that you've done recently have to do with space.
I would like to do more space, but they never seem to perform super well, so I get a bit discouraged about it. I think at some point I'll just do a space related channel so that the videos can just be for people who love space stuff.
Hopefully nver, because he don't know shit on this subject and make a poor work of researching good source on the matter. Better watch PBS than licking his boots.
Correction. Jupiter is not pulling our Moon away, the reason that the moon is moving away from the Earth is due to the spin of the Earth moving the tidal bulge of the oceans slightly forward of the direct line between the Moon and the Earth, thus pulling the Moon forward and increasing it's orbital velocity, which in turn increases it's orbital radius.
I’m shocked at the amount of errors / out of date information on this video Simon. I’d honestly say it would best to makes this video again. Normally the content you pump out is bang on. Stephenson 2 is the largest currently known red giant. Our galaxy is between 80,000-100,000 light years across. Andromeda is nearly double that. It would take light around 6 hours to circus navigate VY Canis Majoris. They are just the larger errors in this but are many more smaller ones. Just look at the comments.
"Red Giant" is specifically a term for a phase in certain solar mass life cycles that have already achieved fusion. At best, Jupiter could be considered a "brown giant", a sizeable mass that never ignited. Unsubscribing from all Simon channels, it is barely researched click-bait. Perhaps if they weren't just gagging for likes and did some actual homework, they could have a positive, educational impact on the world.
Great video, Simon, but your writer mixed up radius and diameter. The size of the Milky Way from “one end to the other” is its diameter, which is 104,000 light years; its radius is 52,000. Same with Andromeda at 220,000 light years diameter.
Just like he said that a star whos diameter puts it's edge at Jupiter takes 6 minutes to orbit at light speed when that's about how long it takes light to hit earth..so at least double times pi, I'd guess or more (can't really remember how far Jupiter is out) edit: Google sez 43min for light to hit Jupiter so 4 hr 30min or so
I have my own playlist with just simons videos from all his channels . Very informative content. And he puts a lot of time and effort in to them. I know he doesn't write most of them but still hes the face and voice of the channel.
Well this video got quite a few things wrong. 1. The moon is not moving away from Earth because of Jupiter. It’s because the rotational velocity of the Earth is transferring some of the energy to the moon causing it to move further away over time. 2. VY Canis Majoris probably didn’t explode yet. It’s not expected to explode for another 100,000 years. It’s 4000 light years away. This means there’s only like a 4% chance is already went supernova. 3. Alcyoneus Galaxy’s large size has nothing to do with the super massive black hole in it’s center. It’s entirely because of all the dark matter scattered throughout it. 4. The empty space picture you showed is Barnard 68. You were talking about Boötes Void. They’re entirely different things.
Thanks for a fascinating look at the biggest objects. Those two large stars are an insane size! I wouldn't like to be near them when they blow that's for sure! Simon's RU-vid monopoly, however, may one day give them some competition!
Oh Simon Stephenson 2-18 (St2-18) is a red supergiant located in the constellation Scutum. Also catalogued as Stephenson 2-DFK 1 and RSGC2-18, it is the current record holder for the largest star known, with a size 2,150 times that of the Sun. The star is located at a distance of 18,900 light years from Earth. It is a member of the open cluster Stephenson 2. Whoever is doing the fact checking needs to do better
@@jedaaa u are not right but also not wrong. the problem with these Hypergiants is that they are often variable in size. they are contracting and therefore changing their size. also they are often remeasuered. one time scuty seemed bigger than stephenson, next time not. its also not easy to measure a star at this distance. all in all u can say that these 3 are the current biggest stars we know at the moment.
@@TheRealRollinator I understand what your saying and and that is true but Stephenson 2-18 is so much bigger that UY Scuti its a non contest variable or not its a young star still growing where as UY Scuti and Canis Majoris are both in terms of hypergiants coming to the end of there life. When you read up on any of these stars the mind just boggles with the numbers involved.
I always liked to think that the Great Void was a super advanced civilization that was so advanced that they have the ability to harness energy from entire galaxies and have just massive Dyson Spheres or something similar which is why we can't detect any light from that area.
I'm pretty sure physicists would have thought of that, after all they're actively looking for Dyson spheres. Maybe we'd have to get more infrared radiation from the void or sth. Even a super advanced civilization still has to get rid of waste heat and can't contradict thermodynamics.
4:13 This doesn't sound right. Six minutes is less than the time it takes for light to travel from the sun to the earth. If the star's radius extends to jupiter's (around five astronomical units), the circumference should be big enough that something moving at the speed of light should take over four hours to circle it. So either VY Canis Majoris has a smaller radius than the video suggests, or someone got the circumference wrong.
Simon, you said our galaxy is roughly 52,000 light years across... Most if not all other estimates I've heard or read have said it's 100,000 lyrs across. Was that just a mistake on your part? If not, that's a pretty big discrepancy.
That's the problem with mass produced content. At some point you are gonna do things because it's close enough to get the idea across but not be always 100% accurate.
Aiming for 100% accuracy needn't be the goal. Hell, science is always making claims of absolute facts that are proven false or inexact... but it'd be nice if "stuff you find on Google" wasn't the primary research tool. If science communicators at least get people to look for correct sources it'll be alright, probably.
Love Simon’s videos, but this one makes it obvious that it’s volume over substance. Getting the circumference of VY Scuti (likely 6 minutes at light speed) and the diameter of the Milky Way (105k LY vs 52k LY) obviously wrong is so alarming that I wonder whether any of this stuff is being proofread.
Yes. From a singularity. Ground zero. Could have been an explosion from a previous universe contracting to a critical state and "exploding" back out, or "hyper expanding," you might say. There are many theories out there. Science is ever-changing, and to tell the truth, we still can't say what exactly happened before, during, or after the Big Bang with 100% certainty. We can only speculate and theorize and make the necessary assumptions based on the scientific evidence that we are capable of revealing with our current technologies.
@@nevertruelydead Yea I started to think after reading your comment that could we pinpoint a point in the current universe where the big-bang started? I doubt it, because space and time are interconnected, so I think "ground-zero" of this hyper-expansion is around 13.8 billion years ago.
Except the universe didn't expand out in a straight line or one certain direction. At first it was thought that it expanded out in all directions pretty evenly for the most part, but more and more, we are finding that is not exactly the case. It's 13.9 billion years old as far as we know. The 'observable' universe as we call it, but - like I stated before - we are discovering, more and more, celestial bodies that seem to predate the universe given our current estimations, pointing to the fact that the universe may, or may not, be older than we think it is.
Yeah, that's what I thought. And by going on how good his usual uploads are, I started to question whether I had my facts correct. Like Stephenson is the biggest star known, not Scuti. And I even think that Stevenson has been eclipsed now. And the Milky Way and Andromeda are double what he said. MWay is 100,000 ly across, not 50,000. I hate being 'that guy' but information like this has to be correct otherwise false info gets told to people, who in turn then relay that false info to others. So it needs jumping on straight away. Sorry.
Way too many mistakes,Stehenson 2-18 is the bigest star,Alcyoneus is not the bigest galaxy,for it is a radio galaxy and they are measured diferendly, IC1101 is still the bigest galaxy,size of the Milky way and Andromeda also wrong.Would sugest research again and redo the video.
Simon, great stuff as always, however when you discuss the 'Great Void' you show an image of Barnard 68 which is a molecular cloud also termed a Bok Globule. This is anything but a void.
Fascinating video! I love these space videos.. so interesting! I keep asking.. have you done a video on Neptune yet? If not, please do; it’s the only planet in our solar system that’s left uncovered by a video. 🙏🏻🙏🏻🙏🏻
What is the reason of the flashing dots for example on 0:44? They are disturbing for the eye on videos. Is it some kind of a way to avoid copyright with pictures?
I am soon to be an astronomer, so it always excites me to see information about astronomical phenomena being discussed. Lovely video as always. One thing though: you said it's approximately 52,000 ly from one side of our galaxy to the other - that actually is its approximate radius from the galactic core to its outer stars. Its diameter is approximately 105,000 ly across. Andromeda is the same issue - its diameter is 220,000 ly. Otherwise though, awesome video!
*Am i the only one who gets British Supervillain vibes from his voice?* *The casual dark humour and body language, instil fear into anyone who dares to cross him!! 😱😱*
Others have mentioned errors as well but for me, the one that jumped out was Stephenson 2-18 not being listed as the current largest star it being 3 billion km vs Scuti's 2.4.
I remember that they showed us this video at church group showing that basically our star was one of the tiny ones and that things just got bigger, and bigger, and bigger. Gave 8 year old me a crisis lol.
Simon, constructive criticism here: the flicker overlay that your editor puts over some (but only some!) video clips is really distracting, particularly when looking at things like detailed astro imagery. Not sure its intended purpose, but IMO that effect detracts from what you're trying to explain, rather than improving it. Cheers.
Oh man if you think thats annoying you should see his science of science fiction channel.. I can't even fkn watch it the editing is so bad and overdone! It's like meme worthy, you have to see it! (Which also sucks because some topics there seem interesting but the editing kills it plus it's not just visual vomit it's sound too so can't even pretend its a podcast)
Imagine being Fritz Zwisky. Came up with a theory that was ignored for your lifetime only to have it become one of the most important quests after you die.
It appears like Simon Whistler's knowledge network is rapidly expanding... can he identify his Big Bang? And there's certainly a lot of enlightenment to be found. I'm hooked!
I love the space videos because they are grounding. Sometimes it’s not enough to consider how insignificant my problems are on a global scale. Sometimes you have to think bigger…
A good visual aid for a lot of this stuff for anyone that has a decent enough PC is Universe Sandbox 2, you can plonk VY Canis Majoris or any other star/black hole, etc inside the solar system and watch it tear the place apart.
Just a minor correction at the end, Dark Matter & Dark Energy are two completely different things. Dark Matter makes up around 26%, Dark Energy around 70% & the remaining baryonic matter (basically, all the shit we can see) around 4%. Not trying to be nitpicky, but in this subject matter, it helps to understand how to differentiate the two which is a common mistake I see people make when discussing this topic. It leads to a lot of misconceptions as a result.
Hey Simon, Love your various sites and all the cool stuff you bring to my brain! I just thought I point out at 12:22 the woman in the astronaut suit is wearing the space suit from the Doctor Who episode "Forest of the Dead" and "Silence in the Library"...cool! 😊 Show of hands in the comments if you know the episode youtuber's!
@6:08 Neutron star and black hole formations both involve supernovae. White dwarf formation is the least harmful form of star death, but even that is pretty turbulent to any planets in that system.
So abit of an odd one but is there a place I can find a list of all the channels you host I often find new channels from your team and they are all interesting to me so far but I dk if I have them
It honestly blows my mind that we can look into space at something so far away and see it when it's been dead for a long time yet it looks perfectly fine to us because it's so damn fsr away
Only thing wrong with the video are light-year measurements of size of galaxies and how long it takes light to circumnavigate those stars. Other than that, great video.
Hey Simon, love the vids, but, I must hit ya with a slight correction, UY Scuti wouldn't reach Pluto, not even Uranus, UY Scuti diameter is 2.3765 billion km, distance to Pluto is 5.0623 billion km 👍
Great video but one correction, dark matter and dark energy are different things, dark means unknown. Dark matter is believed to be matter and particles that have mass, and with that gravity. Dark energy comes from the vacuum energy of space itself and causes a repulsive force called expansion. Dark energy also increases as space expands.
The numbers for the dog dethroned section does not add up. It states that the diameter is 1400 times that of the sun but at 04:18 states it would take 6 minutes to go around at the speed of light. It actually would take 6 hours.
I always love Simon's nonchalant joyfulness about the most horrifying prospects of the future, like the most likely cataclysmic event of two galaxies crashing into each other...
Astrophysics student here. Thanks for this VNV (Very Nice Video). But can we agree on calling Jupiter a gas giant instead of a „red giant“ as the latter term is used to describe a type of star rather than a planet. Also the bok globule Barnard 68 is not an empty void but rather a dark nebula, aka the birthplace of stars. It only seems black and empty when observed in the visible part of light. In the infrared it is not at all dark and by no means empty.
There were a few problems here, which people have already pointed out. Despite some errors in distances or units (and a mangled sentence about dark energy and dark matter at the end), this was still enjoyable anyway. This seems more proofreading errors than anything else? Usually your channels have incredibly high quality content, though. ...Honestly I think some people get way too worked up over a few mistakes.
It would be really cool if both VY Canis Majoris and UY Scuti would have supernovas, and then the resulting neutron stars would have a kilonova. That would be a big kilonova.
Stephenson 2-18 is now known as being one of the largest, if not the current largest star ever discovered, surpassing other stars like VY Canis Majoris and UY Scuti. Stephenson 2-18 has a radius of 2,150 solar radii, being larger than almost the entire orbit of Saturn (1,940 - 2,169 solar radii).
Simon, "How can something that large possibly stay together?" Answer: 👇🏼👇🏼 "Need something put back together? Hi! I'm Phil Swift, and this is Flex Tape!" 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
Great video, thank you! VY Canis Majoris would take light about *6 hours* to circumnavigate, not 6 minutes. time = circumference/speed = 2πr/(Speed of Light) = 2π*988,000,000 km/299,792.458 km/sec = 20,707 sec = 5 hours 45 minutes 7 seconds (approx.)
