This is the New Largest Radio Galaxy (Alcyoneus) [4K]
ฝัง
- เผยแพร่เมื่อ 28 พ.ค. 2024
- What is the largest galaxy? For a long time, the largest has been IC 1101, around 4 million light years in diameter. But in recent weeks, there has been talk of a new, even larger galaxy, Alcyoneus, which is said to be more than 16 million light years in diameter! But is that what's really being proposed in the original paper detailing the discovery? Not exactly, because Alcyoneus is a Radio Galaxy. But what is a radio galaxy, and if Alcyoneus is not the largest galaxy, then how large really is it?
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(NON-ENGLISH VIEWERS)
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SOUNDTRACK:
All tracks by CO.AG Music: / @co.agmusic
- Sound of the Sun: • The Sounds of Space - ...
- A World of Different Dimensions: • A World of Different D...
- Your Outer World: • Slow Ambient Music -...
- Travel Beyond Your Imagination: • Ambient Space Music - ...
- Create the Future: • Ambient Deep Space Mus...
FOOTAGE:
The space scenes in this video were captured using SpaceEngine Pro, a virtual universe simulator:
spaceengine.org/
Get SpaceEngine on Steam: store.steampowered.com/app/31...
Stock Footage Sources:
- Videezy.com
- Pexels.com
- Videvo.net ( www.videvo.net/video/moving-r... )
SOURCES OF INFORMATION:
- Original Paper on Alcyoneus by Martijn Oei et al.: arxiv.org/abs/2202.05427
- Article Detailing the Discovery: phys.org/news/2022-02-giant-r...
- Synchrotron Radiation: www.nist.gov/pml/sensor-scien...
- Radio Galaxies: www.britannica.com/science/Se...
- Giant Radio Galaxies: astronomycommunity.nature.com...
Business Enquiries: SEA.Enquiries@gmail.com
(I don't do paid promotions, sorry)
CHAPTERS:
0:00 What is the Largest Galaxy?
2:02 Galaxies
4:13 IC 1101
6:32 Radio Galaxies
12:31 Giant Radio Galaxies
14:40 Alcyoneus, Largest Radio Galaxy
18:39 Alcyoneus' Host Galaxy
22:57 The Largest Galaxy- Some Considerations
28:51 Closing Statements - วิทยาศาสตร์และเทคโนโลยี
OMG OMG OMG a new SEA VIDEO!! 😍🤩🥰
full metal alchemist?
Your almost as enthusiastic as every white person on a league of legends ad
Have you seen channel However?
Defo
Wow, ur gorgeous! 😲
PLEASE DO NOT STOP MAKING CONTENT… So interesting and thought provoking
Ty! We try our best
I thought you said “PLEASE DO STOP MAKING CONTENT”
You are my favorite channel, hands down. Please never stop.
You betcha! 🙂
@@sea_space thank you. I look forward to every video you post ☺️
i love this channel, because he actually knows what he is talking about and doesn't make videos for 3 year olds for the wow factor. he doesn't click bait and ive been watching him since his gaming days🙂. very nice to see how far he has come and i like seeing this channel grow.
It's his gaming channel what
@@rajveerkanojiya2985 yes
Well said!
I really appreciate you taking the time to say "if, but, perhaps" and willing to speculate on other possibilities rather than just stating the current narrative.
Top comment 🌟
I've recently realised that watching and listening to videos about space, physics, dimensions and everything in between, are very reliable ways to get me to go to sleep.
I've always had problems with sleep, as it's probably something to do with my mind being very active until the early hours of the morning (up until around 12am - 3am). These videos are so fascinating, because it's all speculation and theories about things that are so mind blowingly grand and complex for the human brain to comprehend. I end up getting completely lost in thought and start dreaming, which then eventually I fall asleep.
If you drink tea or especially coffee, refrain from drinking after 3pm and you should find that your sleep improves drastically. If you don't consume caffeine........ Keep watching space videos
@@garethwillis Saying that, it's 100% caffeine!
Please try also the French whisperer’s channel. He does exceptional space ASMR designed for that.
@@snortypig596 - I just tried his channel and couldn’t do more than 5 seconds. I have misophonia and low volume sounds - like the soundtrack of Great Moments With Mr. Lincoln attraction at Disneyland - immediately causes me rage. Now I’ve just given any potential kidnappers and easy way to torture me 😂
I have the same issue . Sleepy all day and at midnight i am hyperactive till the morning. Those videos are helping me indeed
This is my favorite astrophysics TH-cam channel, hands down. I don’t use this channel to fall asleep because it’s so well done. Thank you for all you do!
You definitely have the best astronomy videos on TH-cam. Hands down.
Do you seen channel However?
SFIA is pretty darn close
@@Pathogenai
Nope. Might have to look it up.
@@michalstawicki1451
Will have to look into it! Also love Chuck’s Astrophotography!
Dr Becky and Anton Petrov are also pretty good
im struggling these days, so thanks for giving me those rare moments of excitement when you upload! :)
glad you find excitement in this! i hope things get better for you!
dont lose hope! always look for the positive things in your life!
Joe biden is what's wrong with the universe
I just cannot believe how small we really are.
are you under 6 foot?
More like, from another video, I can't believe how small we "all" came from.
Thank you again for another amazingly put together video. Still have no idea how you don’t have millions of subs yet.
500K on the horizon soon though!
@@sea_space you absolutely deserve it dude!
@@sea_space yeah it takes some time but you'll have millions eventually. These videos are awesome.
Too much background info, that's why... I've waited for almost 15 min before finally getting to the central topic. I have to faforward and search.
@@tomfieselmann5906 You can, not watch?
In perfect SEA fashion, I fell asleep twice in the first five minutes and was only finally able to watch the video in its entirety when I woke up in the morning.
The part on synchrotron radiation was particularly interesting. I think a video that explored all ways to produce and observe light, both natural and unnatural, would be interesting.
You know what the problem with your comment is, and I know you meant it as a complement, but somebody curious about the video may read your first few words and get the wrong idea as you said you fell asleep twice. The danger with that wording is that to many, saying you fell asleep to something is like saying you were bored with it. Sea himself has brought this up on occasion.
@@robr135 I mean isn't that something he should fix, or accept, if he's aware of it?
I've never seen a video but from the title and content it seems like this is a pretty academic channel
However, it might not be a good fit for TH-cam, or video format. If it puts people to sleep, that might be a positive feature that people seek out that makes it suitable. But YT and video in general are for rapid dissemination of information outside of such niche applications.
Basically, no reason to complain. people watch for their own reasons. If the creator wants that to change, they will change the content
I'm watching on 2x speed and it's very slow paced so far
@@seeker296 Master of the Internet comment. Wonder how many of us do that(2x)?
@@seeker296 His videos being laid back with his lecture is the whole point. Speeding through it because you're impatient is just ruining the experience to me. Yes, if you're watching late at night, you will likely fall asleep. And that is okay because you'll likely rewatch later.
If you don't like slower paced videos because you're used to instant gratification and instant funny from fast paced Tik Tok videos, that's fine. But not everyone prefers that though.
This is the most pretentiously pointless gatekeeping thread of comments I have ever seen. As a viewer, one of the millions that watch SEA or any content creators videos, it is in no way shape or form a duty or obligation of that viewer to persuade or dissuade another individual to watch or not for any reason. There’s 10 hour loops of Bee Movie clips, 5 second shorts of meme degeneracy, 2 hour long interviews, 10 minute tutorials. TH-cam is quite literally whatever YOU need it to be. Go outside and touch some grass you cornballs.
Just wanted to say thank you for posting these videos, I have found your sleep playlist amazing. I'd wake up in the middle of the night, learn a bit about Venus then fall back to sleep :)
A few days late, but I love your vids so much. I applaud you on making videos on space topics that aren’t as well known. Everyone knows about stars and black holes, but not everyone knows about stuff like this! Bravo!
These videos are one of the things i look forward to the most, even if it’s only once a month. Amazing work man i love it ❤️
@@connorlancaster7541 read the room, dude.
@@Pugetwitch My goal is to spread the wisdom of God that’s why that comment is there. Are you an atheist?
@@connorlancaster7541
You people are nicer when God isn't the topic of every conversation. /:
@@2dheethbar I think someone can be nice while talking to someone about God if they are humble.
@@connorlancaster7541 But do you talk about God for attention and reactions? Or are your intentions justified? Because comments on the net are generally made with the sole purpose of getting responses, even simple harmless things such as compliments or advice. Otherwise, most comments wouldn't be made. That's not what spreading the word of God is about.
I have devoured your content! Love the effort you put in and your delivery. Being soothed while learning. Wonderful!
What would the rest of the universe look like if you were, say, halfway towards the galactic center of Alcyoneus looking out? Would the gravitational pull of so many massive bodies packed in so (relatively) close together completely distort the view of the cosmos (ie. gravitational lensing)?
That’s a great question, one I’ve never thought about. I hope someone with real knowledge replies so we can both find out.
Interesting question, but even here in the milky way, we can't see through our galactic disk. So you don't have to go to Alcenonious to answer that question. T
The part of the observable universe that is in-line with the milky way is known as "the zone of avoidance".
theres a vid veritasium made on this, u can check that out
@@trivikram4962 do you recall the title?
@@BriarLeaf00 i think its called how one supernova measured the universe,
Nothing, NOTHING beats seeing a new SEA video posted!!!!
It would if he posted 2.
As a former gd fan of yours who is mainly passionate for space,,Your channel has to be one of my favorite creative transformations ever. These videos are truly some of the best mini documentaries of space phenomenon on the internet. Thank you, SEA1997!
We shall forever know him as SEA1997
Yes
Nobody does it like you, man. Fantastic once again.
cant help but love how much you've grown since making videos about news in some relatively obscure 2d platformer
G-News was the mother of all springboards!
@@sea_space sea u have no idea how much I miss ur g-news videos
Please make more videos - these are amazing.
I especially love it when you have to read out amazingly long designations - always cracks me up.
please never stop making videos man, these are the only things keepin my mind active lol
Trying to comprehend the scale of these galaxy beasts truly hurts my brain every single time.
Once again a fantastically narrated video. I always get lost in your visuals.
Btw it sucks that I can't edit Super Thanks messages on mobile.
Great video man! It really deserves more views. Keep up the good work!
SEA videos sets the standard of what quality videos are. This channel is truly a gift to us, the viewers.
Wow. Fantastic work! Love this one!🙌🏾🙂🙏🏽
Another banger! Thank you for putting out such quality content so often, I hope your channel really blows up soon
I dont know about anyone else but I get so damn excited when I see you post a new video!!
Great video! It's mind-blowing that the Milky Way and Andromeda merger has already begun.
Fuck yes thanks for amazing videos that both intrigue me when I don't want to sleep, and help me relax when I do. Amazing!
Dude your channel is killin it. Thanks for putting out such amazing and free content.
SEA and Cool Worlds are the BEST YT channels, period. Thank you 🙏
i genuinely hope you would post more your videos you are by far the most interesting on this platform!
Every time I see a notification of a new video, I hope that it'll be SEA! Finally my hopes came true!!!!
Absolutely love your videos, thank you so much for every single one!
Is there a whole team of people producing these videos for SEA or is it just one guy? The quality in these videos is top notch.
Just me and a 40 pack of beers 😊
@@sea_space something tells me we’d get along. Keep up the great work ;)
Get your wine and hop on the couch, lads, new Sea video just dropped 💕
Thank you so much. My sleep playlist has increased. I love ur content
i set aside time to completely focus on your videos, i adore this channel
Dude this is my new favourite channel. This is amazing.
perhaps this is one the best youtube channels about the cosmos
Ah, once a month or so the sight of a new SEA upload quells my anxieties and warms my heart.
Your channel is one of a kind. Your presentations are mesmerizing. Thank you!
I love the quality and amount of educated thought that you put into these videos. Fantastic job. It makes me feel smaller and bigger at the same time, the physical and mental. You Rock.
Ditto...I couldn't have said that any better!
Got yourself a new subscriber. Great video absolutely fascinating.
nothing better than a new SEA video
Great video as always!!
Ive missed your well rounded analysis. I wish you would post more often mate.
My day has gotten 10384839392% better seeing a new SEA video upload!!
You've just made my day by realising this video bro. Keep um coming Mr Sea 🤘🏽👍🏿
Hi sea, i hope you read this but someday could you do a vid about Intergalactic travel and the possible methods of travel eg hypervelocity stars? Thank you
Been watching you since your gd days and this is one of your best videos yet. Love the channel man.
Another mind-blowing video. Thank you so much! ❤
I play one of your videos every night to fall asleep, I absolutely love your channel and videos. I’d absolutely love to see more galaxy videos! I know you’ve done a couple but I’d still love more
Absolutely love your content!
Today is a good day. A much needed win over Norwich and a SEA video drop too.
I really appreciate the analogy you make of galaxies being cities.
Many astronomers have made the same analogy, nothing new there. You (and the rest of us) currently reside in a "quiet suburb" of our galactic city or so I'm constantly told.
You have become my favorite channel. Almost all of my YT downloads section is your videos lol.
WoooHooo! It's like my birthday and Christmas wrapped together whenever a new SEA video premieres!
Thank you so much for the amazing work you do, so that us mere mortals can take a glimpse of the vast unfathomable knowledge that are contained in our home planet and beyond to the farthest reaches of the universe.
Simply saying thank you isn't adequate for the enormous work you guys do. Love from Bangladesh. 💝💝💝💝💝
I don't know why, but this comment makes me smile. I guess it's nice to see people being nice
@@SuperPITSteelers thanks. Being nice doesn't hurt anyone, and also makes yourself feel better because of it. Whereas, not being nice...
I always enjoy your videos and the beautiful music you play in tht background. So peaceful and enchanting
Recently discovered your channel. Between this channel & PBS Spacetime I get my astrophyics fix!
Your channel is a gold mine, so happy I found it.
In these troubled times, I cannot thank you enough for making these videos available for free and so easily to everyday people like me. The thought of this mind-boggingly vast Universe, brimming with unthinkably complex objects that our human brains can’t even comprehend, far out of reach and forever unfazed by humanity’s madness, brings me a deep sense of peace and perspective that I desperately need to put up with the dreadful experience that is life on this lonely, angry, tiny little rock.
From the bottom of my heart, thank you for doing what you do. It is impactful.
Theres nothing to add to your comment^^ Well said.
@@obsti we are but vermin in the cold, uncaring eyes of the universe...
Problem with the human beings is exactly the fact that they don't seem to realize how miniscule we are on this planet in this vast massive Universe. I really hope that people would be able to open their eyes and minds for these facts and our lives would become a lot better.
Love your work man
Another amazing video, thank you!
I know this isn't your main job, SEA. I hope it becomes your main job though. Every video is top notch. You have a talent and I hope you put out videos are a more frequent basis.
Thank you! And this is my main job as it happens, you’d be surprised how long this stuff takes me even with a clear schedule 😅
@@sea_space I believe it sir. I didn't know it was a one-man-army. Even more impressive!
Knowing this and the quality of these videos you sir deserve twice as many subs, too bad people are more interested in who slapped who at the Oscar’s than the mysteries of the universe.
Thank you for another great job always top notch 👍
You Truly are my favorite out of all my subscribers! I don’t just say that either. To me from your voice to how you narrate….Is Perfect 💜
The best part about sea is that I learn from him. I passed my astronomy/space unit from his videos. 😂
Thankyou soo so so much for the videos you create, you made my day! such a phenomenal videooo!!!!!!!!
This video I've been waiting for, thanks bro, this is the best day for me
Love your videos! ☺️
Thanks for making this video
and your quiet and understandable UK quiet and relaxing voice
droves us beyond and far in the universe.
Thanks
I will sleep so much better tonight! Thanks, Sea!
Hi SEA. Thanks for this. U are a live saver
I love these videos! I'm excited to watch cuz I haven't seen this one...but some of these galaxys I never even heard of! And I watch a hell of a lot of space videos!
Huge notification to get on a hungover Sunday afternoon. Thanks Sea!
I am always stunned by the pictures you use. It must take you forever to find them by scouring all the exploratory sites that make them available such as NASA, The European Space Agency (not the exact name by I can't remember it) and all the study groups attached to universities. Thank you for the beauty and awe they inspire.
Always a good day when sea uploads
These videos are better than most space documentaries that ive seen, Including the new version of COSMOS...
(no one can replace Carl Sagan)
this was fire. loved it!
The thing that amazes me the most is not how big it is, but how far. It's 3 billion light years away or 1 GPc. That's 3.3% of the observable universe!!
once again another amazing video
I'm glad you touched on this...apples to oranges comparison. IC 1101 is a galaxy...Alcyoneus size is an effect of a galaxy.
Welcome back. Thanks!
I really really love your content sea
"Space space space space space space space..." -me whenever a new SEA vid drops
When I first started working on giant radio galaxies a few yrs back, I never imagined them to be popular enough to be viewed 😅so much on youtube. Great efforts by SEA.
Love the channel and every single video! Yes, I've watched all. Some multiple times. Who's the Narrator, the "Voice"?
They are wonderful and I'd like to know more.
SEA...
back again with another banger of a video...
👏🏾👏🏾👏🏾
SEA videos give me serotonin
Perfect timing! A new video for me to fall asleep to :)
Another awesome episode
"Sadly Alcyoneus is just not that guy".
IC 1101: "I am that guy!"
What I don't understand, is how a black hole inside a radiogalaxy can create that incredible amount of emissions with many parsecs of length on each side? What's the source of its "food"?
These emissions are multiple times the mass of the stars inside the radiogalaxy. I hope that the James Webb telescope takes a look at Alcyone radiogalaxy.
_Sorry for my English..._
Yeah same, I wonder if this could be the elusive white hole?
The “food” for these emissions are particles from around the black hole. All black holes which spin have an accretion disc which is full of gas.
This gas can be anything- pure hydrogen and helium, or evolved nebulous gases with heavy elements like iron in them.
This gas is funnelled into the core of a given galaxy by the collisions that formed it, I.e. there continues to be lots of gas around the black hole to this day.
Contrary to the popular belief of black holes “sucking everything in”, they actually consume only a negligible amount of this gas when compared with the amount that is flung around and ejected.
One of these means of ejection is via the black hole’s relativistic jets. Individual particles get funnelled onto the polar axis by magnetic field influences, but the reason they are ejected with such force is unknown.
The synchrotron radiation that highlights a radio galaxy and makes it visible is created when this ejected gas changes its state and becomes plasma- the neutral hydrogen, helium, oxygen or whatever the gas might be lose their electrons and become electrically charged- igniting into a plasma, generating magnetic fields, and thus we have a radio galaxy.
@@sea_space The velocity of the ejections (rather than mere speed because the particles are yanked in as well as ejected out?) makes sense to me because black holes, share the angular momentum of the galaxy, obviously, but accelerated beyond imagination due to consolidation of matter compounded by the conservation of momentum. So the energies thrashing around would be so immense that anything under propulsion would approach the relativistic.
@@sea_space Some smbh's have 'roid rage. Only last Tuesday, one swallowed and spat my local gym past Andromeda- which as you can imagine, was a real nuisance.
Was waiting for you to drop this 💎 on us!!!! Thank you Sam!!!
Great video man, thank you very much
You should be on nebula and curiosity stream, these videos are always A+