14:04 "It's easy to think the Universe is too big to comprehend and makes us seem tiny and insignificant in comparison. To me the opposite is true. It's our curiosity about this enormous cosmos that makes us significant. We yearn to learn more, to seek out knowledge. That doesn't makes us small, it makes us vast!" Phil nailed it!
"The universe is mind-crushingly huge. And yet, here we are, a part of it, learning more about it all the time. It's easy to think the universe is too big to comprehend, and makes us seem tiny and insignificant in comparison. To me, the opposite is true. It's our curiosity about this enormous cosmos that makes us significant. We yearn to learn more--to seek out knowledge. That doesn't make us small, it makes us vast." Now that's damn wonderful.
I really liked Phil's enthusiasm in this episode. He always is very enthusiastic, but he really nailed that home this time around. I hope future generations looks to this show, and other awesome science oriented educational channels on youtube with the same reverence we look at Cosmos and Connections with.
The ancient philosopher Marcus Aurelius used to talk about how insignificant we are. He described the world as very small also. I wish he could have been around to witness our advances in knowledge that reveal just how right he was.
He was indeed an emperor but a philosopher also. His philosophical work had no title given by him but we call them "The Meditations". Well worth buying. Most of the meditations are only a few lines long and complete in themselves so it makes an excellent book for whenever you only have a couple of minutes reading time.
the grain of sand thing blew my mind. I thought I had some vague sort of sense for the scale of the universe, and I was proven utterly wrong. Thanks crash course astronomy!
Holy crap Phil, your dedication and enthusiasm are truly contagious. Every single episode you write and host is not only extremely entertaining to watch but also deeply mind expanding. You have a gift mate, please never let go, you are doing an immensely important job teaching and spreading this subject. The day when every single person on our tiny planet is aware of the contents shared in this series, Earth will be an awesome place to live in. We should all help that day come as fast as possible. Already waiting for the next episode :)
I love how passionate he is about his work! This has also changed my view on the universe, I've been thinking more macroscopically lately. Love the series!
amazing! I wasn't even planning on watching the video because it seemed too long... but once I clicked play I just couldn't stop watching. learned a lot. thanks
+Jesse Hernandez You must be new here. Welcome! I invite you to start with episode one and binge-watch the whole series this week. Meet us back here on episode 40 and let us know what you think. See ya next week!
Learning about the universe is such a humbling experience, it really makes me feel small and insignificant; but, it also reminds me just how special and fortunate we are to even exist. There's nothing more awe inspiring in looking up at the night sky and wondering how in all that chaos, just by chance, our lives came to be.
I like the conclusion. Our knowledge makes us significant. We're part of the universe trying to understand itself. (as originally said by Lawrence Krauss)
Astronomy never ceases to put my mind at ease. It is philosophy in its purest form, and its perspectives are so helpful in making you realise how insignificant our everyday problems are, and how insignificant our lives are. Yet, its beauty awes me so much to the point, that I can't help but feel happy that I'm a small part of the incredible and infinite complexity of the universe.
+Frank Schneider We've been getting bigger and bigger in every episode, right? The Great Attractor would fit in great somewhere just after next episode (Gamma Ray Bursts) in my opinion!
+MaceValor How anyone could believe that ONE PLANET out of, lets be honest, essentially infinite planets, is the only one to harbor life when we know the ingredients are scattered everywhere is beyond me. Personally I think reality scales infinitely. Which means there is an eternity of intelligence.
+Advaita One mathematical certainty that I think a lot of people gloss over when thinking of an infinite universe is that everything has infinite copies. Therefore, there would be an infinite number of identical Earths out there simply due to the statistical probability of the same collection of atoms coming together in the same shape and order. This has nothing to do with parallel universes or the like - just simple, old fashioned probability. Further there are infinite Earths that are identical except for one atom being different. And infinite Earths that are identical but have radically different histories. An infinite number of them where the planet was populated with dinosaurs until last Tuesday when a rampaging virus mutated them all into hairless apes. An infinity of random gas molecule collections in the hot remnants of a supernovas forming an identical Earth only for everyone and everything to immediately perish in a hot plasma bath. Ad infinitum.
+MaceValor What if it takes this amount of stellar evolution to produce the right mix of chemical elements for life to arise? In other words, what if the right mix of chemical elements weren't available in the universe, because enough stars had not yet made them, until they were here on Earth?
+Josh Bobst That is a possibility, begrudgingly, I will entertain. It makes sense but on the scale so far blown up as the entire universe I find it hard to believe. However, I would say there is a possibility that Earth could be the most technically advanced planet in terms of technology progression made by its inhabited life forms. Even with that theory I stand by believing there is life elsewhere.
Space is big. Really big. You just won't believe how vastly, hugely, mindbogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space.
+Rune Munch Pedersen There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.
Is there some sort of mythology about twin giants?If the two galaxies are the biggest then maybe we should name the fused galaxy after some titan mythology.
+Alpaca Man Ymer Galaxy? Not cause he consisted of twin giants (cant really find something like that) but because he was the first giant in nordic mythology
Normally people coming up with names for stuff is met with all kinds of ridicule or people trying to top it or people making jokes. This is one of the few that I have seen where everyone is in agreement. I could see that being put in textbooks (or text-holograms?) billions of years in the future. What galaxy do we live in kids? The Renascentia Galaxy. Very clever.
I just wanna say, kudos to the editing team of this video. I absolutely LOVE the sort of optical illusion shown from 4:48 to 5:06! I love how the solid picture looks like a 3D model being slowly turned because the background is slowly turning! It's small details like that one that I just love and appreciate a lot for some reason.
Phil, you are a precious gift from the universe. Thank you for sharing your passion with us. You are an incredible educator who inspires and fills our hearts with wonder pure, simple wonder with each episode.
Absolutely love astronomy, I always had an interest towards it and watching videos such as these help me gain a better understanding towards the subject. The only thing that tends to stump me is the size of everything in the universe, I can’t even begin to imagine what it feels like going into space and seeing just even planets with your own eye.
unless of course we are some sort of simulation... in which case we just might be!! - unless we can somehow escape our cage, lol. Like when holodeck matter escapes and becomes real. That would be pretty epic, lol.
@14:13 if anything has blown my mind during this course, it has to be this awesome interpretation to life! Thanks for sharing this course with us Phil!
Makes me feel a bit apathetic towards my personal obligations. In the vast intergalactic scheme of things, what does my bank balance matter, or how fashionable the cut of my jeans was? i look at Mars, this planet has existed for billions of years. What's it's bank balance like? How many profitable deals has it brokered in it's lifetime? None, yet there it is. It will outlast me. How long do i live for? Will people remember what i did? No, certainly not. Nothing i do means anything really, all this nonsense. These personal obligations, things we think we need to do, we "should" do, none of it matters. If we don't do it - it won't matter. Mars is itself mind boggling. But there's more planets in a solar system, more solar systems, galaxies, even clusters and superclusters. It's like the whole thing is teaching a lesson, that things really don't matter, so chill. hey roidroid.... chill. it doesn't matter, chill dude.
It's all a matter of perspective. Compared to the tens of trillions of cells that make up your body and tens of trillions of bacteria that live in your stomach you are, as a whole being, absolutely gigantic. Size as a category was invented by humans and the significance assigned to it as well.
Nihilism at its simplicity. I could argue that it's even worse.. what is Mars besides a rock in space? And what are stars besides a bunch of flaming gas? Why does it matter there are so many stars and rocks in a black empty space? Life is just a tiny quick spark in a vast eternity of nothingness. Our bank balances are much closer to nothing than anyone realises.
after over 10 years of learning more about astronomy, I still get amazed like a child everytime someone talks about galaxies! Keep doing these great videos
Shouldn't we say that there 100,000,000,000 galaxies in the *_visible_* universe? Many, many, many more too far for their light to have reached us yet.
As we get closer to the end of the series, it looks like we're getting out of astronomy and headed more towards cosmology. Great wrap-up to the series. Wish it didn't have to end.
+Dan Man This isn't some agent provocateur, or some military official! Gordon Freeman is a theoretical physicist, who barely earned the distinction of his PhD at the time of the Black Mesa incident!
11:54 star clusters seem to look like neurons. What if the entire universe is just the brain of some superior being. What if our brain cells are sitting in our brain right now looking into the darkness wondering whats out there. And the brain cells of our cells are doing the same.
What an inspiring message from Phil...we are so small in comparison to the universe that it is inevitably infinite for us...we are smaller than a subatomical particle inside our own star, yet we are so different that there is a tiny chance that we will know more about this and more to the point we can fully integrate with this whole universe we live on.
+KurashiDragon Oh great, you have the impending doom of the Andromedan Empire waiting to crush our Human Galactic Commonwealth with their sheer numbers as your desktop background? How charming.
Didn't you mean that there are 100 billion galaxies on the Observable Universe? Who knows how much stuff is out there that is simply beyond possibility of detection
Best Episode Ever!!!! This awesomeness and passion of Phil's narrating forces you to learn more and more!!! I wish this course would never end!! Or at least wish for season 2 :D
You just asked the $100,000 question. Hopefully CC will cover Dark Energy and Dark Matter, which as I understand, is the very gravitational/structural ether to which you are referring.
+Mason Lamb Dark Matter and Dark Energy is beyond what we currently know, so anything beyond a mention, or brief introduction to popular hypothesis, is probably beyond the scope of the series. It seems one of the leading hypothesis are that Dark matter is actually neutrinos moving through the vast voids between galaxies, where they become the dominant particles, becomes of the leak of "regular" matter.
too many questions related with dark energy but first i wonder if there is any way to detect "something" in there keeping galaxies and clusters as we know it. Perhaps something like gravital lensing. additionally, it's weird to think that there is some kind of energy capable atract or repel something huge like a galaxy without particles such as photons
+christian ventez abadia Objects don't need to orbit "something" with a higher gravity, they can (and do) orbit their collective center of mass which is also called, you guessed it... center of gravity. So the galaxies in a cluster are bound together by their own masses and attractions to eah other. The same principle happens right here in the solar system: Jupiter is not exactly orbiting the Sun. Jupiter is so massive that it and the Sun actually are both orbiting a point outside of he Sun.
+Guilherme Carvalho Interesting, I had thought that the center of mass would be well in the Sun, but doing the calculations it seems you are right - though only just. The Sun's radius is 696.000 km, and the center-of-mass of the Sun-Jupiter system is 701.000 km from the Sun's center. There is however the fact that the orbit is elliptical, not round. When Jupiter is at its perihelium, the CoM is only 666.500 km from the center of the Sun.
+Roberta Tallienne They do, forming a weblike structure. We can't see anything larger than that however as that structure is wide enough to span our observable universe.
I remember, as a kid back in the 70's, that maybe black holes were in the center of galaxies. After watching the movie The Black Hole. It just made sense to me because galaxies spin around a central point, and there would have to be a huge amount of gravity in the center to do this. Like a black hole. Crazy that I was right about it before they found out it was true.
I have an idea that the black hole in galaxies were actually the first stars in the universe. There spread out since then but due to the qbout of dust available back then they would be the strongest gravity wells available forming the galaxies.
What if when the two galaxies collide that when the black holes gobble up so much gas and dust that both black holes get the polar streams. Would that mean that the andromeda-way would have 4 streams
Wonderful episode! I was so pleased to hear about the Deep Field pictures. I did not know just how small an area was observed for them! Great job with keeping it lively and interesting over a longer-than-usual video, y'all!
I've been watching and reading about these topics but it amazes me every single time. I hope I am still alive when some of these questions are answered :)
I love this series, mainly though because I look at Astronomy as a part of our own history. That big question of "What is the Universe made out of?" Well, simply put: the same thing we are made out of. A constant reaction and recycling of matter into multiple stellar generations. We are connected to each other biologically, to the Earth and Sun chemically, and to the cosmos atomically.
14:04
"It's easy to think the Universe is too big to comprehend and makes us seem tiny and insignificant in comparison. To me the opposite is true. It's our curiosity about this enormous cosmos that makes us significant. We yearn to learn more, to seek out knowledge. That doesn't makes us small, it makes us vast!"
Phil nailed it!
Henrique Maximo I still feel small. Can’t say I agree with him, haha
Hes very PHILosophical
Well, maybe we're "half-vast?"
:P
Most humans don't do that. They believe in some sort of god that fills in the blanks.
That could go on a shirt right there
"The universe is mind-crushingly huge. And yet, here we are, a part of it, learning more about it all the time. It's easy to think the universe is too big to comprehend, and makes us seem tiny and insignificant in comparison. To me, the opposite is true. It's our curiosity about this enormous cosmos that makes us significant. We yearn to learn more--to seek out knowledge. That doesn't make us small, it makes us vast."
Now that's damn wonderful.
Well, maybe half-vast.
:P
And more than a bit arrogant.
I don't know about our being "vast."
Maybe "half-vast."
:D
My face always lights up when I see a new episode of cc astronomy in the subscription list.
+Quester91 same =D
I concur. I wish I could live a thousand years to see what humans could accomplish
+Quester91 Me too! :D
+Quester91 I do as well :-)
+Quester91 Same =D
Milkomeda? We should Call the combo galaxy...."Magna Unam" which is Latin for "great united one"
I really liked Phil's enthusiasm in this episode. He always is very enthusiastic, but he really nailed that home this time around. I hope future generations looks to this show, and other awesome science oriented educational channels on youtube with the same reverence we look at Cosmos and Connections with.
"I'm significant! Screamed the dust speck."
- Calvin
THIS SERIES IS TOO GOOD
+Neal Desai ikr
2good4me m8
yeah agreed
Yep
The ancient philosopher Marcus Aurelius used to talk about how insignificant we are. He described the world as very small also. I wish he could have been around to witness our advances in knowledge that reveal just how right he was.
Bod Notbod was'nt he a roman emperor. never knew he was phlisoper. 😊
He was indeed an emperor but a philosopher also. His philosophical work had no title given by him but we call them "The Meditations". Well worth buying. Most of the meditations are only a few lines long and complete in themselves so it makes an excellent book for whenever you only have a couple of minutes reading time.
Bod Notbod oh i see. probably gonna read it someday. thanks.
@@klarkmartinez1124: Even Hannibal Lecter quoted him!
His book he wrote is one of my favorites. Outstanding philosophy.
Here goes! (cracks fingers)
Andromeda + Milky Way: Andro Bahn, Andromedan Strip, Andromedan Way
Milky Way + Andromeda: Lactomeda
Elliptical: Milky Haze
+Benjamin Antman I like Lactomeda. BEHOLD LACTOMEDA !!!!
+Benjamin Antman Or we could be really original and name it "Bruce."
Or maybe a Culture ship name?
+Benjamin Antman Since these 2 galaxies will merge they will be huge...like a galaxy on steroids. How about the ANABOLICA Galaxy
+Benjamin Antman And here I'm just thinking the ahouyearno galaxy.
Megamilk!
If Andromeda doesn't combine with the Milky Way can it be said to be lactose intolerant?
That or it just does not like milk...
yes or it hates milk
Yes or it doesn't like our Milk
Who would want to drink billions of years old milk
Yes.
7:42 "IT'S HEADED RIGHT FOR US"
Sexual Potatoes Shoot it, Jimbo!
I'm frightened!
Next episode: Yes. This is PRECISELY what my nightmares are made of.
It'zzz headed right for uzzz...Ned
the grain of sand thing blew my mind. I thought I had some vague sort of sense for the scale of the universe, and I was proven utterly wrong.
Thanks crash course astronomy!
Holy crap Phil, your dedication and enthusiasm are truly contagious. Every single episode you write and host is not only extremely entertaining to watch but also deeply mind expanding. You have a gift mate, please never let go, you are doing an immensely important job teaching and spreading this subject.
The day when every single person on our tiny planet is aware of the contents shared in this series, Earth will be an awesome place to live in. We should all help that day come as fast as possible.
Already waiting for the next episode :)
This 45 year old kid loves this series. Space is fascinating! This is a well done series.
I love how passionate he is about his work! This has also changed my view on the universe, I've been thinking more macroscopically lately. Love the series!
I prefer the term "Milkdromeda"
Milkdromedary?
The Andro Way?
Or to continue the lacto-puns, Andro Whey!
Andromedy Way.
Andmilkyda.
@Shikhar S P hello Indian
amazing! I wasn't even planning on watching the video because it seemed too long... but once I clicked play I just couldn't stop watching. learned a lot. thanks
+Jesse Hernandez
pathological attention span deficit ?
+Frank Schneider no, I thought the video was gonna be boring
+Jesse Hernandez You must be new here. Welcome! I invite you to start with episode one and binge-watch the whole series this week. Meet us back here on episode 40 and let us know what you think. See ya next week!
The Buttery Way galaxy
Cuz our milk got churned.
:B
Fungorrr derp :B XD
That's better actually, something like that would be more fun ^^
It's late at night, and my heart stopped when he said "it's headed right for us!"
rip me
Learning about the universe is such a humbling experience, it really makes me feel small and insignificant; but, it also reminds me just how special and fortunate we are to even exist. There's nothing more awe inspiring in looking up at the night sky and wondering how in all that chaos, just by chance, our lives came to be.
Hats Off CrashCourse Astronomy! This is, emphasizingly, the best cosmological and astronomical series in the history. Hats off Phil Plait!
I love this series more with every episode I watch and I love how enthusiastic you are, Phil. Thanks!!
I like the conclusion. Our knowledge makes us significant. We're part of the universe trying to understand itself.
(as originally said by Lawrence Krauss)
Astronomy never ceases to put my mind at ease. It is philosophy in its purest form, and its perspectives are so helpful in making you realise how insignificant our everyday problems are, and how insignificant our lives are. Yet, its beauty awes me so much to the point, that I can't help but feel happy that I'm a small part of the incredible and infinite complexity of the universe.
+CrashCourse Please please, tell me that an episode featuring The Great Attractor is in our future! I yearn greatly for Phil to enlighten us.
+Drezdin
Agree an Episode on galactic superstructures would be very interesting (although this already came somewhat close)
+Drezdin But... Phil is already in every episode...
+Frank Schneider We've been getting bigger and bigger in every episode, right? The Great Attractor would fit in great somewhere just after next episode (Gamma Ray Bursts) in my opinion!
Gareth Dean Emphasis was on "enlighten us", not on "Phil"!
Better name for the combined galaxy?
Andromeda way
Mildromeda
Milkdromeda
Bob
Jeff
Long story short - we are most likely not alone
+MaceValor
That was my immediate thought. :)
+MaceValor How anyone could believe that ONE PLANET out of, lets be honest, essentially infinite planets, is the only one to harbor life when we know the ingredients are scattered everywhere is beyond me.
Personally I think reality scales infinitely. Which means there is an eternity of intelligence.
+Advaita One mathematical certainty that I think a lot of people gloss over when thinking of an infinite universe is that everything has infinite copies.
Therefore, there would be an infinite number of identical Earths out there simply due to the statistical probability of the same collection of atoms coming together in the same shape and order.
This has nothing to do with parallel universes or the like - just simple, old fashioned probability.
Further there are infinite Earths that are identical except for one atom being different.
And infinite Earths that are identical but have radically different histories. An infinite number of them where the planet was populated with dinosaurs until last Tuesday when a rampaging virus mutated them all into hairless apes. An infinity of random gas molecule collections in the hot remnants of a supernovas forming an identical Earth only for everyone and everything to immediately perish in a hot plasma bath. Ad infinitum.
+MaceValor What if it takes this amount of stellar evolution to produce the right mix of chemical elements for life to arise? In other words, what if the right mix of chemical elements weren't available in the universe, because enough stars had not yet made them, until they were here on Earth?
+Josh Bobst That is a possibility, begrudgingly, I will entertain. It makes sense but on the scale so far blown up as the entire universe I find it hard to believe. However, I would say there is a possibility that Earth could be the most technically advanced planet in terms of technology progression made by its inhabited life forms. Even with that theory I stand by believing there is life elsewhere.
Phil, I cried. This is beautiful, just perfect. I love when you crush my mind with videos.
It hurts my brain to think that there are over 100,000,000,000 galaxies and people STILL think that we are the only form of life in the universe.
I like the name "Andromeda Galaxium", merging the original name of the Milky Way and the generic name of Andromeda
Space is big. Really big. You just won't believe how vastly, hugely, mindbogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space.
+Rune Munch Pedersen
Space is big. Really big. Much, much bigger than your hat.
+Rune Munch Pedersen
There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.
+rrozinak really interesting
+rrozinak but kinda dumb...the universe serves no purpose...its not made for anything
+Rune Munch Pedersen you deserve at least forty two likes!
The visual at 11.50 looks too much like a neural network, strange!
Do you feel a notion that we may live inside a brain of some being or Being?
Maciej Żuk absolutely not. The lag would be trillions of years if so
@@rolandcaters7258 You mean the lag in neurotransmission?
Maciej Żuk yeah, as the closest “neurons” to each other are 4 years away
@@rolandcaters7258 it might be that that being experiences time differently
Is there some sort of mythology about twin giants?If the two galaxies are the biggest then maybe we should name the fused galaxy after some titan mythology.
There's the Aloadae (Αλωαδαι) who captured Ares but were defeated by Artemis in the war against the gods.
+Alpaca Man Ymer Galaxy? Not cause he consisted of twin giants (cant really find something like that) but because he was the first giant in nordic mythology
+Benjamin Antman The one whose armpit sweat produced humanity?
Checkiiiing.... Yep.
Thought so.
This is the best video that I've seen! I love astronomy and how it make me think about my life in this huge cosmos.
We should call the galaxy "renascentia" Latin for 'rebirth'
I agree
+1 Great idea!
Oohhh... I like that one
+Okay. I find this acceptable.
Normally people coming up with names for stuff is met with all kinds of ridicule or people trying to top it or people making jokes. This is one of the few that I have seen where everyone is in agreement. I could see that being put in textbooks (or text-holograms?) billions of years in the future. What galaxy do we live in kids? The Renascentia Galaxy. Very clever.
Am 14 and I watch all the
video and I love astronomy
"I'm about to crush your brain again." best introduction to a lesson ever
I just wanna say, kudos to the editing team of this video. I absolutely LOVE the sort of optical illusion shown from 4:48 to 5:06! I love how the solid picture looks like a 3D model being slowly turned because the background is slowly turning! It's small details like that one that I just love and appreciate a lot for some reason.
#philplaitforpresident
Gustavo Parrilla nice milk
Phil, you are a precious gift from the universe. Thank you for sharing your passion with us. You are an incredible educator who inspires and fills our hearts with wonder pure, simple wonder with each episode.
How 'bout "Anyway"?
Javellie now this is brilliant
noway
this is the only one that doesnt suck
This deserves more thumbs up.
Absolutely love astronomy, I always had an interest towards it and watching videos such as these help me gain a better understanding towards the subject. The only thing that tends to stump me is the size of everything in the universe, I can’t even begin to imagine what it feels like going into space and seeing just even planets with your own eye.
We....are definitely...not....alone!
unless of course we are some sort of simulation... in which case we just might be!! - unless we can somehow escape our cage, lol. Like when holodeck matter escapes and becomes real. That would be pretty epic, lol.
I hope so, imagine the pressure if Earth was the only bastion of sentience in the universe
@@TovenDo.O.Video- Pressure from who though?????
@@abyss1997 True dat, daaaaaaamn now I feel even more pressured for no reason
Evangelion Reference?
@14:13 if anything has blown my mind during this course, it has to be this awesome interpretation to life! Thanks for sharing this course with us Phil!
We should call it Androgeny, since we won't be able to tell them apart once they've merged.
I really don't understand how can someone out there can dislike any video from this series...Oh humanity.
Not Milkomeda, let's use the phrase:
"A long time later in a galaxy not so far away"
Such a great episode, I read about these things already, but seeing them visualized and explained is even better.
Makes me feel a bit apathetic towards my personal obligations. In the vast intergalactic scheme of things, what does my bank balance matter, or how fashionable the cut of my jeans was?
i look at Mars, this planet has existed for billions of years. What's it's bank balance like? How many profitable deals has it brokered in it's lifetime? None, yet there it is. It will outlast me.
How long do i live for? Will people remember what i did? No, certainly not.
Nothing i do means anything really, all this nonsense. These personal obligations, things we think we need to do, we "should" do, none of it matters. If we don't do it - it won't matter. Mars is itself mind boggling. But there's more planets in a solar system, more solar systems, galaxies, even clusters and superclusters. It's like the whole thing is teaching a lesson, that things really don't matter, so chill.
hey roidroid.... chill. it doesn't matter, chill dude.
It's all a matter of perspective. Compared to the tens of trillions of cells that make up your body and tens of trillions of bacteria that live in your stomach you are, as a whole being, absolutely gigantic. Size as a category was invented by humans and the significance assigned to it as well.
"Nobody exists on purpose.
Nobody belongs anywhere.
Everybody dies eventually.
Now come and watch some more youtube Summer"
That question was partly answered by a character in the movie "Annie Hall."
Nihilism at its simplicity. I could argue that it's even worse.. what is Mars besides a rock in space? And what are stars besides a bunch of flaming gas? Why does it matter there are so many stars and rocks in a black empty space? Life is just a tiny quick spark in a vast eternity of nothingness. Our bank balances are much closer to nothing than anyone realises.
after over 10 years of learning more about astronomy, I still get amazed like a child everytime someone talks about galaxies! Keep doing these great videos
he called us astronomers :3
That pumping of heart when u see a new video of CC Astronomy...I wish they don't end this series
The Buttered Way?
Because the two galaxies churned each other up.
Been watching the majority of this Crash Course for my semester class, extremely glad I picked astronomy. Great work!!!
Shouldn't we say that there 100,000,000,000 galaxies in the *_visible_* universe? Many, many, many more too far for their light to have reached us yet.
This is the best series on RUclips. Keep up the great work Phil, CrashCourse team, and PBS!
Two BILLION light years? *head explodes*
My absolute favorite part of this series is his enthusiasm. That’s really what brings it to life!
It baffles me how every human being isn't an astronomer
Callum Docherty we will always need some people to make sandwiches for the astronomers, they can get lost in their work and not eat properly.
Same here but Drew is right. What baffles me is how much money is spent fighting each other rather than finding ways to become truly space faring.
Callum Docherty piloting is cooler
It’s expensive as hell.
@@cpt_proton3813 Preach it brother! I hate Chicago too!
As we get closer to the end of the series, it looks like we're getting out of astronomy and headed more towards cosmology. Great wrap-up to the series. Wish it didn't have to end.
Do an episode on hypothetical concepts such as white holes and the multiverse in the future ;)
+Jason Lee KY That's not really astronomy though. It's more like theoretical physics. *coughGordonFreemancough*
+Dan Man haha true theoretical astronomy
+Dan Man This isn't some agent provocateur, or some military official! Gordon Freeman is a theoretical physicist, who barely earned the distinction of his PhD at the time of the Black Mesa incident!
Blue So close "...or some highly trained assassin!"
+Dan Man Damn! I just realized that. I'm I'm the midst of going through my fifth play through of that game. freaking love it.
Man, Phil sure knows how to pump you up! I'm always left in awe at the end of each episode.
11:54 star clusters seem to look like neurons. What if the entire universe is just the brain of some superior being. What if our brain cells are sitting in our brain right now looking into the darkness wondering whats out there. And the brain cells of our cells are doing the same.
dropatrain Azathoth? Is that what you were going for?
Same thought...
What an inspiring message from Phil...we are so small in comparison to the universe that it is inevitably infinite for us...we are smaller than a subatomical particle inside our own star, yet we are so different that there is a tiny chance that we will know more about this and more to the point we can fully integrate with this whole universe we live on.
8:31 Oh hey, it's my desktop background :D
+KurashiDragon Link? i want it to :P
+Richard Jorissen wordlesstech.com/wp-content/uploads/2012/06/Milky-Way-Andromeda-Galaxy-heading-for-collision1.jpg
+KurashiDragon 13:42 is mine :D
+KurashiDragon Oh great, you have the impending doom of the Andromedan Empire waiting to crush our Human Galactic Commonwealth with their sheer numbers as your desktop background? How charming.
Andromedan empire thug life :P
The passion in his explanations is compelling.. Phil Plait you're amazing!!
Damn you, Phil, I'm having an existential crisis right here.
Phil’s obvious enthusiasm for astronomy is at least 50% of why I love this series...
Didn't you mean that there are 100 billion galaxies on the Observable Universe? Who knows how much stuff is out there that is simply beyond possibility of detection
The PHILosophical ending to the video was excellent!!
"It doesn't make us small, it makes us Vast!"
Anyone else catch the flock of seagulls reference?
I saw it :)
Where?
+Eurgh Sire-Awe Where he says, in the 80's the scientist did so and so and one of the scientists has a flock of seagulls hair heh.
I was wondering what the heck was up with that scientist's hair.
+SirNeutral Yes, that hair is like devil's horns?
Best Episode Ever!!!! This awesomeness and passion of Phil's narrating forces you to learn more and more!!! I wish this course would never end!! Or at least wish for season 2 :D
I have a question, usually objects in the universe are orbiting something with a higher gravity...what keeps the galaxy cluster together?
You just asked the $100,000 question. Hopefully CC will cover Dark Energy and Dark Matter, which as I understand, is the very gravitational/structural ether to which you are referring.
+Mason Lamb Dark Matter and Dark Energy is beyond what we currently know, so anything beyond a mention, or brief introduction to popular hypothesis, is probably beyond the scope of the series. It seems one of the leading hypothesis are that Dark matter is actually neutrinos moving through the vast voids between galaxies, where they become the dominant particles, becomes of the leak of "regular" matter.
too many questions related with dark energy but first i wonder if there is any way to detect "something" in there keeping galaxies and clusters as we know it. Perhaps something like gravital lensing.
additionally, it's weird to think that there is some kind of energy capable atract or repel something huge like a galaxy without particles such as photons
+christian ventez abadia Objects don't need to orbit "something" with a higher gravity, they can (and do) orbit their collective center of mass which is also called, you guessed it... center of gravity. So the galaxies in a cluster are bound together by their own masses and attractions to eah other.
The same principle happens right here in the solar system: Jupiter is not exactly orbiting the Sun. Jupiter is so massive that it and the Sun actually are both orbiting a point outside of he Sun.
+Guilherme Carvalho Interesting, I had thought that the center of mass would be well in the Sun, but doing the calculations it seems you are right - though only just. The Sun's radius is 696.000 km, and the center-of-mass of the Sun-Jupiter system is 701.000 km from the Sun's center. There is however the fact that the orbit is elliptical, not round. When Jupiter is at its perihelium, the CoM is only 666.500 km from the center of the Sun.
Please never stop this series...
thanks
Do the clusters themselves form larger clusters? And so forth in ever-increasing degrees of order?
+Roberta Tallienne They do, forming a weblike structure. We can't see anything larger than that however as that structure is wide enough to span our observable universe.
Oh good god, the universe is a giant spider web. All hail the spider-queen, Aidfhdfihfdl!!!!
And as always I am left breathless after seeing an episode of of this series.
I remember, as a kid back in the 70's, that maybe black holes were in the center of galaxies. After watching the movie The Black Hole. It just made sense to me because galaxies spin around a central point, and there would have to be a huge amount of gravity in the center to do this. Like a black hole. Crazy that I was right about it before they found out it was true.
I have an idea that the black hole in galaxies were actually the first stars in the universe. There spread out since then but due to the qbout of dust available back then they would be the strongest gravity wells available forming the galaxies.
Mind crushingly........your videos are SIMPE, offering VERY EASY TO UNDERSTAND complex ideas. Your videos crush my mind!!!
andromedalky, milkomeda, milankiomeda, anmildrokimeda, .... over 9000 -omeda?
milkameda is over 9000
+xgozulx Or maybe Galaxia Eortasmo. Just invented this two Words.
+xgozulx ah this is what you get when you let your damn scientist name your galaxy after a candybar :)
+Mind Blow
better yet,
Miiiilkamedamedamedaaaaaaa!!!!
Why not Andromeda Way? Andromeda's bigger anyway.
My eyes get wet when I think of the size of the universe. The thought alone left me in awe.
Pfft, 2 billion ly, that's nothing! I could walk there in a couple quadrillion years.
+Christopher McKee Yeah, it's a hobby I have called "GETTHEFUCKOUTOFMYWAYI'MWALKIN'HERE", it's very refreshing.
Mr Plait, you sir, are awesome. Much gratitude to both you and Crash Course!
All right, my mind's blown.
This series is isotropic. Isotropically AWESOME.
4:19 this animation is soooo cute I can't😂
This is the best series on the Internet. You guys are so awesome.
What if when the two galaxies collide that when the black holes gobble up so much gas and dust that both black holes get the polar streams. Would that mean that the andromeda-way would have 4 streams
Wonderful episode! I was so pleased to hear about the Deep Field pictures. I did not know just how small an area was observed for them! Great job with keeping it lively and interesting over a longer-than-usual video, y'all!
Andromeway?
Sam Gilfellan The Andromada Way
I've been watching and reading about these topics but it amazes me every single time. I hope I am still alive when some of these questions are answered :)
its an andromeda milkshake
i love the passion of phil. HE IS ASTRONOMY ITSELF
2019 ANYONE???
I love this series, mainly though because I look at Astronomy as a part of our own history. That big question of "What is the Universe made out of?" Well, simply put: the same thing we are made out of. A constant reaction and recycling of matter into multiple stellar generations.
We are connected to each other biologically, to the Earth and Sun chemically, and to the cosmos atomically.
Astronomy inevitably leads to philosophy.
I just love this series, srsly. Thanks a hundred billion times for that, Mr Plait.
Milky Way + Andromeda = Mega Milk or (Megomeda = me-ga-me-du).
Or Magadromeda
Megamedu sounds like something from a giant mecha anime.
mini pin or androway
Posters of the Hubble Deep Field are my favorite image of all time.
Milky Way + Andromeda =Andromaway
No it need the milk part
Or, just change the o in Milkomeda to a long o instead of a short one.
Milky Way + Andromeda = Andromaway? More like Milky way + Andromeda = Milkdromeda!
RedOneWTF i like the Andyway
You are correct lemonguy
This video is wonder. Pure. Simple. Wonder. The amount of dopamine per second of it is by far the largest of my RUclips experience.