Stranger Stars
ฝัง
- เผยแพร่เมื่อ 28 พ.ค. 2024
- Some of the most bizarre and interesting objects in the Universe are stars. Let's go on a journey and discover what happens when physics is taken to the most extreme.
Chapters:
00:00 Intro
03:33 Red dwarfs
04:53 White dwarfs
06:39 Black Dwarfs
08:15 Neutron stars
13:36 Quark stars
15:58 Strange stars
16:35 Electroweak stars
17:38 Planck stars
Sources:
All about star birth, life, and death:
en.wikipedia.org/wiki/Stellar...
About neutron stars:
www.space.com/22180-neutron-s...
What happens inside a black hole? Nobody knows!
www.space.com/what-happens-bl...
What is a Planck star? - Ask a Spaceman! Dr. Paul M. Sutter
• What is a Planck Star?...
Music used:
Purrple Cat - Ghost Planet
• Purrple Cat - Ghost Pl...
Neon.Deflector - Pulsar
• Neon.Deflector - Singu...
Stevia Sphere - Hot Chocolate
• Stevia Sphere - Hot Ch...
Support the channel:
/ bluedotdweller - วิทยาศาสตร์และเทคโนโลยี
One of the things I miss most about being on a submarine was when we would occasionally pop up in the middle of the Pacific far away from any land or civilization and if it was at night you could go topside into the sail and look up at the night sky and it was just awe inspiring what you could see. It wasn't like a dark night in the city or even in typical rural areas. There was no light coming from anywhere for hundreds of miles so the sky was just completely lit up with stars and you could see the dust of the Milky Way spread across the sky. I would go up there and just stare. Just imagine, our ancient ancestors saw that every night because there used to be no light "pollution". It's really an incredible view. I think everyone should find a place you can go see it far away from city lights. It's one of the most beautiful things you can see on this Earth.
im lucky enough to live up the top of a hill covered in woodland.
there's many a night when im walking in the dark, looking upwards and I think the same.
I'm sure it gave the people back then a much greater connection to everything when you're seeing the true majesty of the universe.
Such a view appeared only once to me, when my wife and I visited Stewart Island, at the southern point of New Zealand. We actually embarked upon an excursion to witness the kiwi birds on a deserted shore, when they would start to forage on the beach. We were not allowed to use any flashlights, so as not to disturb the wingless birds. A side effect of these conditions was that we could see the night's sky, devoid of any light pollution. For me as a European, seeing the Southern sky is all the more exciting, but under these almost perfect conditions, it was indescribable. I need to revisit New Zealand, only for that purpose (the kiwis were fine, but hardly recognizable in the dead of night).
Thats an experience not many have shared. I’m jealous
One night many years ago I was at a birthday celebration at a pub in a town in regional Victoria, about 2 hours outside of Melbourne, Australia.
It was after midnight and I was standing outside on the main street talking to some people and then all of a sudden the whole towns power went out.
A lot of people came outside and everyone was talking and curious about why the lights all went out. It took me a minute or two for my eyes to adjust but I looked up and the entire Milky Way was stretching across the sky.
I told my friend to look up, and before long there were about 8 or 10 people all just standing there staring up not talking. It's absolutely breathtaking.
I envy you (in a good way)
"You know what else weighs 1 trillion kg?"... I really thought that was gonna be a "your mom!" joke for a second 😂
😅
😂😂😂
Yo mama..
It kinda was, now wasn't it?
If you chipped off a fragment of a Neutron Star, it would instantly explode with extraordinary energy from its staggeringly high internal pressure. It's only the gravity from their tremendous mass that keeps them stable - especially with their rapid rotations (which would rip apart pretty much any other material through internal stresses).
This is absurd...how can a channel like this have less than 4k subscribers? As an avid follower of space time, Anton Petrov, Cool Worlds ect, this channel is right up there! Absolutely amazing! ❤ this!
Totally agree. Thanks for the tips, added cool worlds too. And im subbed at 5.8k just now. Wel deserved skyrocketing atm🎉
@@gamermerijn Subbed at 6.52k
Check out Sabine Hossenfelder, Paul Sutter, Arvin Ash, and Angela Collier if you're looking for more of this sorta thing.
@@grumblycurmudgeon Avoid Sabine Hossenfelder videos on capitalism though.
Subbed at 7.61k, let's go!
This is a subject not discussed often enough, thank you for talking about quark and plank stars. I appreciate your content and presentation.
These videos are so good. I never realized that plasma is the most common star of matter but it’s logically obvious
None of this is new to me. The presentation, however, is top grade. Welcome to the ranks of the best Science TH-cam channels!
Her pondering of whether a civilization in the far future would ever be able to know anything about the origins of the Universe---I had the same thought the first time I ever heard about this scenario for the far future of the Universe. Until now I haven't heard anyone wonder the same thing. I feel so validated.
You should check out Isaac Arthur's civilization at the end of time Playlist. It's nothing but thinking about this question.
@@bmobertugh. Isaac Arthur's baby-talking makes my stab-hand itch.
@@angusmatheson8906
I get that.
Regardless, he explains big ideas well enough for me to visualize and even believe in.
Maybe if you play it at 2x speed or faster?
That's what I do.
@@angusmatheson8906since he got surgery on his tongue and went to speech therapy it's significantly better. I've been watching him for a long time I never really minded it when I go back and watch his old videos I can hardly believe it's the same person. You should check out his newer stuff.
@ angusmatheson8906- Prick much?!? I bet u don't even have to practice!!
Just some update: the heaviest neutron star observed carries around 2.35 Solar Masses, was observed in the summer of 2022, so it is rather recent news.
I love very much your naration and your voice. And you explain advanced and difficult concepts quite clearly. I look forward to watching your other videos.
Just found your chanel, i love it, you are in top category of physics presenters bless you.
Thanks for always showing something I didn't know before, and bringing new science ideas to youtube. Keep up the great work! 👍👍
There is no such thing as a "Planck star" even within loop quantum gravity. This is just made up nonsense.
You know, I'm a bit of a Planck star myself.🌞
Stars are not superheated plasma. They're just plasma. The star's matter is in the phase its expected to be in given the pressure and temperature, thus it is not "super heated".
What a fantastic lil nugget of scale to include, about the neutron star. I've never read/heard before what the escape velocity would be of such a massive object. Half the speed of light? Geezus, that's enormous.
It approaches the EV required to escape jehovah's witlesses.
Loving your videos. Also I really appreciate the quality of the closed captions! ♥
Just found your channel and I love it!
Thanks luv keep up the great work!
Brilliant! This was absolutely captivating! Can’t wait to watch more of your excellent videos 😃
Entertaining and very delightful to watch... great job!!
Excellent video, thank you!
Thank you! I did learn something knew today. I had never heard of this category of hypothetical star before. The Planck star.
I really like your style. Between what you know and your expression of it into memorable, repeatable points of fact and relativity, is a high quality that I respect and appreciate a great deal. Keep up the great work! And thank you.
Nice work putting this together 👍
Your content is great. So chill, informative, interesting. You need more followers, your channel should grow fast. Doing what I can, keep making these awesome videos!
Great channel!! Thank you.
Just found this channel and it is quickly becoming a favorite. I forsee this channel blowing up
Another well presented video, thank you !
I did well saving the best for last. I not only got my journey through the universe, I learned about stars I’ve never heard of! Nicely done, blue dot dweller. 🌌
Excellent,interesting and enjoyable,thank you 🙏🏻
thanks for sharing your knowledge, you make this world a little bit richier
What an interesting and engaging presentation!!
Great video, love your stuff!
This is so awesome! I can tell you have great passion for the cosmos. Your voice and the way you talk about this is the only singularity I am thinking about I must confess. 😊😂
I really enjoyed your video. You have a lovely style of communication and you really put your own unique spin on the video compared to other TH-camrs in this space. New subscriber! Looking forward to watching more soon. Cheers.
Wow 🤓 you totally rock ,❤ this channel now, great work seriously 👍
Thank you for posting. I love this content
Thinking of a black hole as a ultra nova star exploding so slowly that we cannot even perceived it, really gives an idea of the scale of time and space.
Because of the Event Horizon, we couldn't even see what is happening inside anyway.
This is very good, thank you.
“Stars are the engines of existence “🎉. Thats too cool
This channel deserve more followers
Excellent video
I love your name it's like that voyager look back from Saturn... Since then we're pretty sure we're small in the universe. I like to think of earth as a flaming mud ball. On a scale everything's a little earthy/wet or steam run off on a teeetanic scale lol. Love your channel just found it and subscribed ❤
Late to this one, but always look forward to your uploads. You are not only a great storyteller, but I trust the information you share with us. Cheers from Australia
Awesome channel
Awesome content
Awesome.
With living in a city, the experience of a truly dark sky is too much of a wonder for my little brain. I, laterally, get starstruck when I go on holiday to countries that have areas of no infrastructure or developments and witness such an awsome sight of a dark, unpolluted sky!!
Saw your twitter comment about it being hard to stand out on TH-cam. Well, your video just got recommended to me after watching ParalaxNick and i was really surprised because I don’t remember the last time TH-cam recommended a small channel to me. So maybe that’s a good sign of things to come.
So happy for you bluedotdweller, your channel really deserve the love it's getting today. Congrats :)
Never heard of electrowrak burning before. Fascinating.
The explosion of a plank star sounds like a big bang. I wonder if it would drag a universe worth ofmass from vacuum fluctuations with it. Surly, by the time it decayed, time dilation being what it is, the reat of the previous universe would be so far beyond the hubble horizon that it wouldnt disturb much... interesting.... i wonder if the physics of what little matter surrounding such an explosion would "bleed into" the resulting big bang. (Assuming thats a good parallel.)
Truely fascinating.
Thank you.
Thank you.
Wow what a gem of a video. So dense!😏 Going to binge the channel now. Thanks!
Subscribed!
Really I like this video
Great video, awesome presentation and a voice that is pleasant to listen to.
I guess I'm the only one that finds her voice pretty annoying.
Thank you! Interesting and easy voice to listen
to. Good work. Makes my mind spin! Tina..Brian
Awesome work! Have you ever imagined how the collapsing core of a massive star might go through every phase of matter you've described here for the briefest of moments on it's way to becoming a black hole? Surely the collapse happens extremely quickly, but we know for example that extreme spin rates can potentially delay the collapse into a singularity due to the massive angular momentum involved. I like to imagine that even if only for the briefest moments of time, the collapsing core goes through being a white dwarf, a neutron star, a quark star, a strange star, etc. during its collapse. Since I'm obsessed with magnetars, l sometimes wonder if perhaps the most powerful magnetic fields in existence might potentially pop up during this process but for too short a time to be measured.
I imagine this is something that could happen! But like you said, stellar collapse might go too quickly for any instrument to be able to detect each separate phase. Maybe if a supernova happens close enough to Earth, who knows what we'll find. There's still so many mysteries out there.
@bluedotdweller The mysteries are what keep it so fascinating! I truly would never want to know everything. It would be really interesting to know how fast these massive star cores actually collapse. It's widely reported that when fusion energy pressure stops, the outer layers of the star collapse inward at about 25 percent of the speed of light until they bounce off the core due to the massive neutrino energy release, which creates the supernova. But I've never heard anything about how fast the core actually collapses beyond this point. That would be something very interesting to research.
Another astronomy channel? DONT MIND IF I DO! ❤🎉
Well the real one on top of that. There are so many fake ai generated uploading 3 fake news videos everyday astronomy channels which boils my blood.
It would be interesting if all black holes are in fact these plank stars. It doesn’t change anything mechanically speaking. These will still be objects we cannot interact with regardless, and they will still explode an unfathomable amount of time into the future. The concept of them being an instantaneous explosion that takes till the end of everything to explode is funny.
I find the thought of the supermassive black hole that holds our galaxy together being an extremely temporary phase of a massive object that will one day explode to be quite existential. In this case, everything here is a result of time dilation, and from our black hole's perspective, the galaxy is just a strange, bright flash in the middle of its compression and re-expansion process that only appears for a moment before it explodes and everything around it becomes instantaneously indistinguishable from its own matter. That's not even getting into the thought of how further consumption works. Like, if there's a quark star at the center of a supermassive black hole, then that would be the remnant of the star that first collapsed into that black hole. But would matter that is consumed after conception ever reach the quark star before it explodes? Could there be multiple quark stars within a supermassive black hole, all growing ever closer but never reaching each other before they all explode because of time dilation? Or maybe quark spheres surrounding the quark star, or even quark waves interacting with each other as they compress further and further. God it's fascinating to think about.
I find rhe beat way to describe loop quantum gravity is in the sense of a book. Each page is a measure of gravity in time. Now wrap this book with the binding going towards the center of an onion, each layer becomes the backing of the binding in time. An snapshot of gravity through time, an not as statically observed phenomenon.
How does a Planck star explode if it has to exceed lightspeed to climb out of the potential well?
Summary of Planck Stars: Subatomics Under [Gravitational] Pressure:
"We can't take it anymooooore!" (Explodes)
Mind blown multiple times. Do you make your own visuals?
Thanks for the nice comment! I don't make my own visuals, most of them come from eso.org or official NASA sites, or sites like pixabay.com.
No matter how violent the explosion of a Planck star, it still couldn't go faster than light, so it wouldn't escape the event horizon. I expect that it would collapse back down to a Planck length and explode over and over, all remaining inside the event horizon, while the whole thing slowly evaporates via Hawking radiation. But then again, I am not an expert, so there could be holes in my hypothesis.
My "solution" to the singularity is that the contents of the black hole would collapse towards a singularity asymptotically, never actually reaching it because it would take infinite time to reach that point. So, there would never actually be a singularity, and infinity is avoided.
Oh that's what a plank star is.😮
ngl i loved the metaphor
Well, the Planck star might explode again, but nobody says that it necessarily will re-explode right within our universe. It could create a new region of spacetime and explode inside it. This would be the start of a new baby universe. So all black holes would be planck stars.
I adore you. Nice stars.
As red dwarves start to collapse into white dwarves, would that trigger a new phase of fusion with its heavier elements, causing the star to re-expand before it collapsed again?
if you could chip off a piece i get the feeling it would explode. Since during collisions heavier elements are made.
"Fusing heavier elements out of lighter element"?
Erosion is the process of breaking down elements into smaller particles. Growth is the biological process of "feeding" that turns living organisms from smaller beings to larger beings. Other living bacteria produce by cellular fission: splitting into two.
This theory of "fusion" is similar to feeding, but also dissimilar. The growth in spatial extension in living beings includes increase in mass. The increase in mass of the core of stars is due to pressure from the outer layer as gravity overcomes the repulsive forces of electron charges and of proton charges. From the single proton and electron of hydrogen to 2 protons, 2 neutrons and 2 electrons of Helium. Where the neutrons come from is due to some conservation of mass/energy law that governs these processes.
Instead of feeding on the environment and splitting into two distinct but relatively equal organisms as is the case with living amoeba; the case with fusion is as if one amoeba ate another amoeba producing an amoeba twice their individual sizes.
Has this kind of thing been observed in the living world? Gametes join and rapidly increase in size to produce cells that will eventually be babies. But that is due to genetic code. Is there a genetic code to stars?
If living things are only made of atoms ⚛️ why are biological processes so much more complicated than the processes that create the elements we're made out of?
Is there more to Nature besides that which physicists would have us believe?
Subbed at 8.94k,,loving these man!😊
So is there something like an event horizon around a Planck star? An area where the time dilation is not visible/affected? Also, near the Planck star, has it already exploded? Will the Planck stars explode after the last black hole evaporates? Does this mean that all of the matter drawn in will be released in the explosion? Subscribed. Also, also, your eye make-up is excellent/beautiful.
Planck stars should probably be indistinguishable from black holes from our outside point of view. As @bluedotdweller said, it apparently rebounds in an instant from 'its' point of view, but because of the extreme time dilation, we see it exploding after trillions of years. Its the same as an infalling astronaut (into a black hole) whose radio signals and light get weaker and weaker and right at the event horizon, a final, faint 'image' is 'frozen' in place, but from the astronaut's point of view, local time seems normal as he crosses the event horizon. If Planck stars exist (and we're probably a long way from ever finding out if they exist), then black holes don't. They essentially 'prevent' a black hole from ever forming.
As an interesting aside regarding plank stars, they shouldn't be spheres, they should be shells without interior space. Assuming fundamental constants such as plank length cannot be exceeded, then the Bekenstein Bound is another such constant describing the *maximal information a volume of space can contain* - which, interestingly is described by the Surface Area of the sphere bounding that space at plank density.
Because time dilation (and length contraction!) both approach infinity as you approach a plank density surface, you cannot enter the volume it is circumscribing, you just get trapped on that surface along with everything else that ever fell onto it, and it continues to expand, until over trillions of years it eventually evaporates, as you noted regarding plank stars.
To us this wouold look like the 'event horizon' of a black hole, but a true event horizon can't form because nothing can ever cross the threshold. It's infinitely far away in time so it cannot be reached.
The result is an ultra dense shell that exactly satisfies the Bekenstein Bound and Plank Density limitations of our universe. The shell isn't held up by any structural force - it's simply falling forwards in time at a nearly infinite rate of speed rather than falling inwards in space, so it is not 'stable' except in the sense that it is nearly frozen in time from any external perspective.
When scientists say "the math breaks down, it doesn't make sense" I wish I knew enough to understand what they mean by that. Do the equations just have no possible answer, or do the answers point to something absurd?
One minute into this video and I'm hooked. I'm subscribing right now.
Can the extreme densities in something like a neutron star make heavier quarks stable? Could they contain exotic quark composite particles? This would allow them to pack more mass into a smaller volume, but still have dissociation composite particles rather than a degenerate quark soup.
Slowly exploding? Hawking Radiation? Makes sense to me.
If you consider the big bang singularity, the moment before it began to expand, the amount of gravity present would literally cause time to stop. So then how did expansion begin, along with time, if time is linear and perpetual? How much time passed while time was standing still in Infinite density?
Could quark stars be disguised to us as black holes? High gravity, high radiation, high temperature, high luminosity. Maybe because of the extremity of their environments they are short lived, because their gravity attracts any nearby matter and the evolve into black holes? But to us, they appeared as black holes before they actually were?
Hmm? Good point! I bet they would definitely look like a neutron star! Hell they might be for all I know , not up on latest astronomy.
I am not a physicist, but I've read that some 99% of the mass of a proton or neutron does not come from its three valence quarks, but from kinetic energy as a consequence of special relativity. If a neutron star was to collapse into a quark star, what would happen to all that energy? Wouldn't it simply explode instead, similar to a Type 1a supernova?
So ... basicly a plank star exploding would look just like the big bang.
*_I hear those eyes, and I see those tears..._*
I have no clue on the kinds of energy values when dealing with quark stars but could it be possible that a quark star emits far less light than expected due to absorbing it through the process of confinement? If quarks cannot be separated, even by massive amounts of pressure due to gravity, then I'm inclined to believe there must be some mechanism that would express this property on a massive scale.
Great channel, you should have a million subscribers!! I love your voice too 😊
12:40 I wonder why a neutron star has a magnetic field
They come from a neutron's quarks. Despite the fact that neutrons have no electric charge, the quarks do, and their movement creates a small but measurable magnetic dipole on the neutron.
There is one thing I didn't get from your explanation. If I understood it correctly, you said that a dwarf star gets to a point where it stops fusing helium and hydrogen. But later you said that dwarf stars are made of carbon and oxygen. How can it be ?
I would assume that a collapsing universe might look exactly like an expanding universe only played out in reverse. With the difference between the two being indicernable from the point of view inside/on that universe. For all we know . Our universe might, in entirety, have the same shape as a galaxy. Among others. And so on and so on. I don't think that the universe is infinite. If it was, I don't believe size and mass would mean anything in physics, but it does. You would see protons as large as Galaxies. It would make the plank length not possible. Simply because everything that your mind can imagine would still be smaller than the plank measurement.
How would an exploding Plank star differ from the big bang or would it be another big bang?
The divide between Neutron objects and Black Holes interests me. Only gravity affects both and the 'snap' from one state to the other must be highly energetic before it disappears into its well. This moment has a chance of being revealing of dimensional fractures.
Neutron stars have always intrigued me , for most its black holes but they don't hold my interest, when 2 neutron stars collide if they fall below the ..damn cant think of what they call the limit that makes a black hole! But if they the combined mass falls below that limit...man the explosion must be hell on wheels!!! I think thats called a 'hyper nova' !! Would love to see it from a safe distance.
I think you meant to say “matter could not be squeezed into anything smaller than the Planck volume” 20:01 - not Planck length.
Maybe even gravity itself can be compressed if given enough time.
keep up the good work ...👍
Fancy story telling
I'm also hot, dense and kept from collapsing by the pressure.
Speed doesnt matter when dealing with a black hole. Space itself is being consumed. Think of space as a highway a blackhole the destination and light as the vehicle it dont matter how fast you travel cause the highway your on only travels into the blackhole. no roads out either.
Is it pixelated? or is it smooth?
She is eye candy for sure and I dig her data. But is there more?
An extra special narrator. She's VERY KNOWLEDGEABLE, PRESENTS INTERESTING INFO IN A USEFUL MANNER. PLEASE SUBSCRIBE. YOU'LL LEARN MUCH! 💕🌌💋