I just realized, this video series entertains me for months now and I never did anything for appreciation. Now, I just wanted to say thank you for this video series. Always when I felt down I was happy to see there's another Crash Course Astronomy episode out. The host is a really likable personality and it's uplifting to see him talk about his passion.
i love this series, you're absolutely right about the presenter, i also like the world history presenter and the host of PBS spacetime. their all incredible videos and presenters. i have 3 teacher friends who use them in their classes. 2 elementary and 1 high school.
+Vaibhav Gupta I figure that you've seen several episodes, or all maybe? The economics series that is. Is it a bit objective? Because I don't feel the need to be told that one economic system is better than the other. I just want to learn and form my opinion myself.
In my mind, this series is divided into some arcs and there will be more: Arc about basics (whatbis astronomy, gravity, tides, equipment for astronomy, etc...) Solar system arc (Sun, planets, asteroids, comets and meteors, but also those moons, clouds and other stuff) Current star arc (Stars and everything about stars, their shapes, sizes, coloures and even death forms) Now i think there will be something about galaxies then about big bang and then, like you said in episode 1., eventual fate of universe itself. But you know the future of your series, it's great.
Absolutely LOVE this series and the posts on Slate. One question: if open clusters are so short lived, why aren't they all gone by now. In other words, there must be a mechanism by which they are continually newly formed - yes?
Thank you very much for making this video, Phil Plait, Aransda, Thaller, Sweeny and all the others at _Crash Course_ Astronomy! It was really interesting to hear you comparing globular clusters to open, galactic clusters. I actually had no idea what the word ‘globular’ meant before looking it up after this episode. Personally, I do prefer more tightly packed globular clusters over open clusters. Anyway, keep looking at the stars! Thank you for this video!
This series couldn't have come at a better time, in my humble opinion that is. Any time would have been great but with all the discovers and new knowledge we've gleaned since Hubble was launched and now with the Kepler finding new objects seemingly everyday I think the timing was superb. Once the James Webb gets into service I believe it will open our minds to things we could never have dreamed of. Thanks for putting this together, it's been awesome so far!
Thank you so much for this. Reason why I opened this? Job 38: 31; Job 9:9 mentioned Bear, Orion, Pleiades! And I’m into tears realizing how beautiful the creations are & above all how great the CREATOR is!!!
In the episode, it says that in a cluster it is possible for many stars to orbit around a central point that might possibly be devoid of an object. I understand that part, but would it be possible that the immense gravity of all the stars would work to make that point into a kind of gravity trap? An area where any debris that gets close to it will get stuck in it because the gravity of the stars would prevent it from escaping?
I watched this video after watching many of the others in the playlist and a couple lectures from other channels. As I was watching this one, I kept thinking how cool it would be if Earth were in a cluster (due to the view of the cosmos and how much easier studying it would be) nut that clusters didn’t seem like they’d be suited to having planets and life, or that if life did somehow form that it’d be at a much higher risk of extinction than we are. Then in the last part of the video you basically said the same thing. I guess I’m learning!
It's so amazing at how tiny we are and how vast the universe is. So fascinating how we are so lucky to be alive and a part of such a big and beatiful universe. It's sad though that we as a species are so narrow minded that we can only focus fighting each other instead of trying to understand the very little we know now about the space we take in the universe. Learning about how incredably humongous our universe actually is makes you realize how minscule we really are. Life is beautiful.
Hey Phil... Any chance that rocky planets are the child of a old dead star that didn't destroy its iron core? I really like the idea of planets being the ghosts of stars =D Or could you explain how the iron cores formed?
I have a question: This series is very well done and enjoyable, bravo! But I feel in this video there is something crucial you never explained: if the open clusters tear themselves appart, why hasn't this happened to globular clusters? What is the difference that explains their longevity? It really should have been stated in the video. I just re-watched and I still didn't catch the explanation.
So if globular clusters form higher mass stars (through collisions) then surely those higher mass stars will produce heavier elements when they go nova. Wouldn't that mass potentially form planets and other stars?
Someone else noticed that as of lately (last year or two) scientists hardly mention the big bang by name anymore? There are several new theories about the origins of universe, so they just talk about, "the beginning" or "the formation".
I just spent my weekend watching the astronomy series.... I can't believe I have to wait a week for the next episode!!!! :( Thank you for this awesome series.
What about Mel 111?? It is another star cluster that can be seen NAKED EYE. It is in Coma and very spectacular to see in summer nights and also a joy in binoculars.
Great episode, as has been the entire series. One star type I have been waiting to see covered (as what little I Have been able to learn about it so far) are the Wolf-Rayet type Binary pairs, but at least so far have not seen mentioned yet. Will you , (or have you) be covering this particular star or is that something for another series
Programs like SpaceEngine are perfect for exploring things like Globular clusters. The stars inside of the documented clusters are randomly generated, so you may find planets orbiting some. SpaceEngine would allow you to see what the sky of a planet would look like should it exist in a cluster, regardless of how unlikely it is in our own universe.
Very cool, thank you, but how can stars revolve around an epicenter without some central mass? Are we assuming that there is a black hole at the center? Also, what happens when many stars collide? Is there an additive affect? Is there a critical mass for stars combining this way? Thank you so much for your time on these videos!
Hey Phil! First of all, I love these videos so much! I've seen every single one of them like twice because I really love space a lot pretty much always have since I was like zero or something. I've always wanted to do something to do with astronomy when I'm older and after seeing your show I really want to be an astrobiologist. I'm in my second to last year of high school right now, and I was just wondering what subjects I'd have to take in future to do that? I'm currently taking evolutionary biology (I wasn't allowed to do physics) and my school doesn't offer space sciences :( Any advice for me? Thanks :)))))
Hey Phil, If planets can't form in Globular clusters, what if say Alpha Centauri was the near edge of a globular cluster? Would that be far enough to be safe, but close enough for pretty lights?
On the off chance any one answers these questions. When you talk about star clusters are they similar to planetary systems in how they orbit or affect each other? Or can they by multiple sol-like systems that have an effect on each other due to the relative close proximity keeping them in a fairly dense area of the galaxy? And did I get my Affect and Effect right?
the no-edge hank running across the screen made my day heh, thank you for this series, space is my special interest and this is my prime information source. (also! i have met phil plait! you gave a lecture at the arkansas governor's school i attended! i started squeaking when i saw you were going to host this show
I just realized, this video series entertains me for months now and I never did anything for appreciation.
Now, I just wanted to say thank you for this video series. Always when I felt down I was happy to see there's another Crash Course Astronomy episode out. The host is a really likable personality and it's uplifting to see him talk about his passion.
+Shirukröte I agree, these videos actually make me happy and well cheered up when I see them in my feed, ty CC and Phil Plait
+Shirukröte If you like this series, you'll love Phil's books. I have two: 'Bad Astronomy' and 'Death from the skies'. Both excellent reads!
Shirokröte (^^)
i love this series, you're absolutely right about the presenter, i also like the world history presenter and the host of PBS spacetime. their all incredible videos and presenters. i have 3 teacher friends who use them in their classes. 2 elementary and 1 high school.
Best series ever.
I disagree.
+Chemistryisthegame History was also good.
***** didn't watch it. but economics is good.
+Chemistryisthegame Thanks!
+Vaibhav Gupta
I figure that you've seen several episodes, or all maybe?
The economics series that is. Is it a bit objective?
Because I don't feel the need to be told that one economic system is better than the other.
I just want to learn and form my opinion myself.
Is anyone else just interested in astronomy and binge watching this?
Ye
yes, this is a great series
Me
@SMS I love Dragon Ball.It's the franchise that introduced me to the amazing world of anime so it has a special place in my heart.
@kamal ks BORING?! USELESS?!
THIS IS WHERE I GET MY DAILY DOSE OF ASTRONOMY, HATER!!!
Thank you wonderful people at Crash Course Astronomy for educating/entertaining me. That is all.
+Peter Hamburger Aw, thank YOU for watching! :D
-Nicole
Moral of the story? You can't live without heavy metal.
yamma yamma pooku ki. I'm boji with mmoms in
Lol 😂 🎸🤩🎸🤩
I love how they give credit to the team by speaking, instead of just throwing a bunch of names to the screen
These types of videos are always fascinating to watch. There is so much to learn about the cosmos in such a tiny life span we have.
This is by far my most fav crash course.. thank you for such an amazing journey..
WOW that was perfect timing.
just finished watching the last ep.
Fun fact everybody the Seven Sisters are Subarus car logo sign👍
In my mind, this series is divided into some arcs and there will be more:
Arc about basics (whatbis astronomy, gravity, tides, equipment for astronomy, etc...)
Solar system arc (Sun, planets, asteroids, comets and meteors, but also those moons, clouds and other stuff)
Current star arc (Stars and everything about stars, their shapes, sizes, coloures and even death forms)
Now i think there will be something about galaxies then about big bang and then, like you said in episode 1., eventual fate of universe itself. But you know the future of your series, it's great.
"What do you call it when stars cluster."
The Oscers?
Is the topic, "Quasar" coming anytime soon?
And what about Wormholes?
+Jack Star Wormholes don't fit this series, now if there were one on physics...
Wormholes don't count as Astronomy? Awww man
Arie,.....what?
+Arie Elberian Your comment was confusing.
Absolutely LOVE this series and the posts on Slate. One question: if open clusters are so short lived, why aren't they all gone by now. In other words, there must be a mechanism by which they are continually newly formed - yes?
This is the best show on youtube. Thank you!
Thank you very much for making this video, Phil Plait, Aransda, Thaller, Sweeny and all the others at _Crash Course_ Astronomy! It was really interesting to hear you comparing globular clusters to open, galactic clusters. I actually had no idea what the word ‘globular’ meant before looking it up after this episode. Personally, I do prefer more tightly packed globular clusters over open clusters. Anyway, keep looking at the stars! Thank you for this video!
This series couldn't have come at a better time, in my humble opinion that is. Any time would have been great but with all the discovers and new knowledge we've gleaned since Hubble was launched and now with the Kepler finding new objects seemingly everyday I think the timing was superb. Once the James Webb gets into service I believe it will open our minds to things we could never have dreamed of. Thanks for putting this together, it's been awesome so far!
Thank you so much for this. Reason why I opened this? Job 38: 31; Job 9:9 mentioned Bear, Orion, Pleiades! And I’m into tears realizing how beautiful the creations are & above all how great the CREATOR is!!!
I really appreciate the explanation of why open clusters are made of mostly massive stars (because the smaller ones have been flung out). Thanks.
I loved the no-edge Hank cameo!
i regret that I only have one, "like" to give this video. thank you for your speed and efficacy. such rich content.
This guy makes crash course fun and entertaining to watch! Whoever this guy is thank you!
I love this series' opening, this series is also entertaining and informative.
In the episode, it says that in a cluster it is possible for many stars to orbit around a central point that might possibly be devoid of an object. I understand that part, but would it be possible that the immense gravity of all the stars would work to make that point into a kind of gravity trap? An area where any debris that gets close to it will get stuck in it because the gravity of the stars would prevent it from escaping?
Been catching up on my A&P pretty much everyday, but late Thursday nights are always reserved for CC Astronomy. Thanks Phil, keep 'em coming!
The same.
Anybody else feel overjoyed when a new CC astronomy comes out?
Have been following since episode 1 and been hooked ever since.
Your passion for the subject is kind of awesome.
Beautiful stuff. Can't wait for the really spooky stuff the universe glued together.
All these massive structures that form in the universe are really fascinating to me. Much more than the small stuff.
mind blown
Almost every episode xd
+marsajib you should really watch pbs space time then it won't just blow your mind it will obliterate it
+marsajib watch pbs space time, your concioussness will be destroyed...
I come back every week to see if there's a new episode out. You guys rock!!
I have a 225x magnefication refractor,it's really 75x but I have a 3x Barlow,do you think I could see Globular clusters with it?
This series is great! I wish they create a new astronomy series today like the biology one they remade
Jebediah, Bill and Bob Kerman! I salute you space explorers!
I never want this series to end!!!
I watched this video after watching many of the others in the playlist and a couple lectures from other channels. As I was watching this one, I kept thinking how cool it would be if Earth were in a cluster (due to the view of the cosmos and how much easier studying it would be) nut that clusters didn’t seem like they’d be suited to having planets and life, or that if life did somehow form that it’d be at a much higher risk of extinction than we are. Then in the last part of the video you basically said the same thing. I guess I’m learning!
Awesome series, makes learning exciting and fun!
may this video series never end
7:10 It's hard to believe something that full of light and energy,that even looks like a city shining in the dark,isn't alive somehow.
Was that Hank at 6:11?
+Jesse Silva yes. dude, no edge
+Connor Shea NO EDGE!
+Jesse Silva Indeed it was: store.dftba.com/products/no-edge-shirt
-Nicole
+Connor Shea No Edge!!!!!!!
@@crashcourse *Anatomy and Physiology intensifies*
Damn ! I was totally unaware of all that stuff.
Thanks for making me a little less dumb everytime. :)
Please don't let this series end.
Thank you soo much Phil! I love all the astronomy videos!
Still the only Crash Course thats up there with JG World History =D
It's so amazing at how tiny we are and how vast the universe is. So fascinating how we are so lucky to be alive and a part of such a big and beatiful universe. It's sad though that we as a species are so narrow minded that we can only focus fighting each other instead of trying to understand the very little we know now about the space we take in the universe. Learning about how incredably humongous our universe actually is makes you realize how minscule we really are. Life is beautiful.
Awesome! I learned a lot about the estimated age of stars due to their mass. So interesting
These are fantastic videos. This presenter is a great teacher.
Hey Phil... Any chance that rocky planets are the child of a old dead star that didn't destroy its iron core? I really like the idea of planets being the ghosts of stars =D Or could you explain how the iron cores formed?
I have a question:
This series is very well done and enjoyable, bravo! But I feel in this video there is something crucial you never explained: if the open clusters tear themselves appart, why hasn't this happened to globular clusters? What is the difference that explains their longevity? It really should have been stated in the video. I just re-watched and I still didn't catch the explanation.
Observer31 Check 7 18 I think gobbler clusters have more stars so it takes time for them to evaporate
So if globular clusters form higher mass stars (through collisions) then surely those higher mass stars will produce heavier elements when they go nova. Wouldn't that mass potentially form planets and other stars?
These episodes are so fantastic. Such a great show. +1 to you, science-man who kinda reminds me of myth-buster-man.
My favorite crash course series :D
these videos are addictive!!!
LOVE this series.
Perfect, you answered all of my questions in one video.
Someone else noticed that as of lately (last year or two) scientists hardly mention the big bang by name anymore?
There are several new theories about the origins of universe, so they just talk about, "the beginning" or "the formation".
love the series! please keep them coming. :)
My god, all this knowledge in 10 minutes.. I feel like I've been to school for a month :D
Video on Quarks? By the way, my day isn't complete without your series.
please explain in detail what happens when stars collide.
this is intriguing.
I just spent my weekend watching the astronomy series.... I can't believe I have to wait a week for the next episode!!!! :( Thank you for this awesome series.
An episode on variable stars would be cool, I see them quite a lot.
You're OUR star Dr. Plait.
you should do an episode on human space flight; its history and hopeful future, but also problems like distance, time, radiation, etc.
What about Mel 111?? It is another star cluster that can be seen NAKED EYE. It is in Coma and very spectacular to see in summer nights and also a joy in binoculars.
Great episode, as has been the entire series. One star type I have been waiting to see covered (as what little I Have been able to learn about it so far) are the Wolf-Rayet type Binary pairs, but at least so far have not seen mentioned yet. Will you , (or have you) be covering this particular star or is that something for another series
I love this series!!!! 👍
best series. Keep it going.
I love this series
Programs like SpaceEngine are perfect for exploring things like Globular clusters. The stars inside of the documented clusters are randomly generated, so you may find planets orbiting some. SpaceEngine would allow you to see what the sky of a planet would look like should it exist in a cluster, regardless of how unlikely it is in our own universe.
I love stars and you guys are my stars too! Thanks a lot!
Very cool, thank you, but how can stars revolve around an epicenter without some central mass? Are we assuming that there is a black hole at the center? Also, what happens when many stars collide? Is there an additive affect? Is there a critical mass for stars combining this way?
Thank you so much for your time on these videos!
Nice. A "No Edge" reference with an animated Hank running across the screen.
So much love in the comments, and the video itself.
I feel good coming here, on this little part of the internet.
I just love this series!
It will never cease to amaze me people think that the universe is only a few thousand years old... I just.. can't..
Thanx Mate.... Bind moggling !..... I look at these things as often as I can. PEACE!
Am I the only one that thinks Phil's shirt is really dope? Damn I'd love to have a beer with that guy.
my favorite video so far!!! fascinating!!
Just saw the Pleiades yesterday, so good.
Hey Phil! First of all, I love these videos so much! I've seen every single one of them like twice because I really love space a lot pretty much always have since I was like zero or something. I've always wanted to do something to do with astronomy when I'm older and after seeing your show I really want to be an astrobiologist. I'm in my second to last year of high school right now, and I was just wondering what subjects I'd have to take in future to do that? I'm currently taking evolutionary biology (I wasn't allowed to do physics) and my school doesn't offer space sciences :( Any advice for me? Thanks :)))))
Best astronomy course
Hey Phil, If planets can't form in Globular clusters, what if say Alpha Centauri was the near edge of a globular cluster? Would that be far enough to be safe, but close enough for pretty lights?
I will cry when this series ends.
Let's not forget the "Dryaa Flyuae LM-W" cluster. Favourite of explorers in the Elite universe for being a cluster of neutron stars.
There is a kind of poetic beauty to this, which is at least part of the reason I became an SF writer.
favorite show on this channel by far! :)
You guys should check put space engine. The view from a planet in a GC is amazing.
I was about to post a question about planets in globular clusters, and then he said that last part. It's like he read my mind.
Thankyou team ! Amazing job 👍
On the off chance any one answers these questions. When you talk about star clusters are they similar to planetary systems in how they orbit or affect each other? Or can they by multiple sol-like systems that have an effect on each other due to the relative close proximity keeping them in a fairly dense area of the galaxy? And did I get my Affect and Effect right?
I love the vlogbrothers reference! NO EDGE!
Imagine trying to use a compass in a globular cluster full of neutron stars.
the no-edge hank running across the screen made my day heh, thank you for this series, space is my special interest and this is my prime information source. (also! i have met phil plait! you gave a lecture at the arkansas governor's school i attended! i started squeaking when i saw you were going to host this show
can globular clusters "adopt" free orbiting stars when they pass through the glactic plane? If so, could it adopt a metal rich star with planets?
Dam I love astronomy
LOve the Hank Green cameo in relation to "NOOO EDGE!"
I like watching this guy’s videos much more than the Austrian Mac from It’s Always Sunny in Philadelphia.
awesome stuff. Subscribed