Professor Merrifield is awesome, here is why: Always has visual aids on hand, so important for getting abstract points across. No BS- Professor Merrifield is always honest and is not afraid to discuss the weaknesses of a theory or his own understanding. Is passionate in an intellectual, difficult subject matter. People like this are always interesting, and their enthusiasm is contagious. Dude is just cool AF let's be honest, sweater game is spot-on
i must admit that i was super nerdy excited to see another addition to the Messier object playlist. And Professor Mike Merrifield is awesome. thank you both so very much.
This guy is a living legend the way he can incaptivate and enthrall while articulating information at an alarming rate, its almost like being plugged into the matrix except his knowledge is the database and his enthusiasm the bandwidth!!
I am Mohamed from Tunisia.Thanks for the great effort that you are doing to produce such great videos about Messiers ...still waiting the full collection of 110 videos :)
It may be that globular clusters all look pretty much the same but that just means that they're all equally ASTONISHINGLY beautiful. They always make me think of David Bowman in the movie 2001: "My god... it's full of stars!"
Very glad to see another Deep Sky video after all this time! Still hoping for an explanation of adaptive optics from one of the astronomers (I know it's been touched on before). It's the lasers, you see.
and to think that they are talking about the age, composition and origin of stuff that is visible for us as nothing but a collection of dots gotta love living in this age
Very nice and informative video. I can listen to professor Merrifield all day. :) Also nice to see some of his glass models (I can see Saturn) in the background. I've actually just ordered a Milky Way one. I'm looking forward to when it arrives. :D
Good choice, M2 is in Aquarius and will be visible in the night sky this summer. It's right on the back/shoulder of Aquarius and forms a triangle with Alpha Aquarii, otherwise known as Sadalmelhc, which marks Aquarius' neck and Beta Aquarii, or Sadalsuud, which marks Aquarius' waist. Most of the stars that make up Aquarius are rather dim and it's one of the least visible of the zodiac constellations, but if you can find the Great Square of Pegasus look just below it and you might spot M2.
I would be interested to hear a little bit about what it would be like to be IN a globular cluster. If you were on a planet orbiting a star on the outskirts, halfway in, and near the center. Would it be possible to sustain life there? How far are the stars apart? What would the sky look like? I think these are interesting follow-up questions about globular clusters.
Hey Brady, do you think you can make a series (or new channel) for amateur astronomers? Something based more on the practical side of things, like using your scope, finding objects, astrophotography (amateur level) etc.
Great video! taught me quite a bit really and I almost have a heart attack when I came this sunday to youtube and realised there was a new deepskyvideos video, cheers!
You can see the milky way just fine. As for the universe, discussing the shape or characteristics of it goes very deep into theoretical physics - but generally the consensus is that the universe probably doesn't have a spacial edge (thus, no real shape), but probably a temporal one (as in, time). I suggest you search for the video "How Big is the Universe?" - by Minutephysics, it should help you out.
Strontium and Barium are only made in supernovae so the 2nd and 3rd generations of stars in M2 include material collected from the explosions of previous supernovae. There must be some neutron stars and black holes in M2 left over from those explosions.
We can also know that both generations of stars in the cluster have remnants of supernovi in them, since neither strontium nor barium can be made through simple fusion.
Sun must have also been in globular cluster once it was born... There's theory that it was knocked out by another passing star that travelled along the Milky Way disc...
generic property of clusters: do you mean it's like looking at a huge field of flowers & you see clusters of red flowers... is it like red tulips here, red roses there or is it every cluster of red flowers is a cluster of roses? "it looks like every other globular cluster...when you've seen one you've seen them all" that seems weirdly significant to me...I mean when you are looking at a vast area isn't similarity a possible pattern? (or maybe they aren't as similar as they seem when looking at them)
Mike brought up ages, and I looked through the paper at arxiv and I didn't notice anything regarding the ages of the stars. I wanted to see what the difference was between the younger and older ones. I know M2 is 13 billion years (Gy) old, but surely some of these stars are from different generations. I wonder what the lifetimes of the stars in the cluster have been for the last 13 Gy. If they were, say, 5-10 Gy then there would be 2nd and 3rd generation stars in the cluster today.
Different generations of stars are made up of different stuff. It's fairly easy to tell our sun is not a first generation star, because it doesn't contain the elements that a first generation star typically would. So, yes - but it's not easy to elaborate in just a RUclips comment.
Before I saw this I thought the stars were as old as the milky way and the globular clusters, but its the whole cluster that's old, not the stars making them up. I thought the stars were some kind of different process than stars in galaxies some how.
How close are these stars in globular clusters? I wnonder if you live on a planet around one of the "suns" you can see the other ones a little big bigger as stars than we see stars on our sky...
So is blurring a Hertzsprung-Russell diagram standard procedure, or did some guy just glance at the diagrams the one day he couldn't find his good bifocals?
If the galaxy is basically a flat disc shape then why do we not see (with the naked eye) a visible band around the sky? Even more than that I believe the entire universe is thought to be basically a flat plane disc shape, we should also see a band from this? Is it just that they are far too far away to make a difference to the naked eye and only the stars that are very close to us are visible?
Then he would not have time for these videos. That would be sad, although I must add that Brady is still free to do what he wants, after all the videos are free...
Follow our progress with this video playlist: bit.ly/MessierObjects
Professor Merrifield is awesome, here is why:
Always has visual aids on hand, so important for getting abstract points across.
No BS- Professor Merrifield is always honest and is not afraid to discuss the weaknesses of a theory or his own understanding.
Is passionate in an intellectual, difficult subject matter. People like this are always interesting, and their enthusiasm is contagious.
Dude is just cool AF let's be honest, sweater game is spot-on
I came across this channel by chance a while back and have not seen new videos until now. Very happy I stuck around and waited, thanks.
Damn! Wish I could speak as fast and clearly as this guy! The true aspects of a brilliant mind!!! Love Merrifield!!!
Yes I forgot the S in Herschel - it's not like he is a big deal in astronomy or anything!
Man, I wish I was smart. A career in research seems so amazing.
i must admit that i was super nerdy excited to see another addition to the Messier object playlist. And Professor Mike Merrifield is awesome. thank you both so very much.
Prof. Mike is so passioned about astronomy! i love when he talks about it=)
This guy is a living legend the way he can incaptivate and enthrall while articulating information at an alarming rate, its almost like being plugged into the matrix except his knowledge is the database and his enthusiasm the bandwidth!!
I've been waiting for a Deep Sky Video for awhile!! Awesome to see you back!
Gor bless Prof. Mike Merrifield. Really enjoying this wee series. Thanks.
About time we got another! No joke I watch these every single day; I love them. Please keep making them Brady your a genius...
I've watched every video in Deep Sky Videos, and I'm really hoping that you come back to it and do some more!
Pants!
You really have a knack for asking the REAL good questions, and after all, isn't that the best basis of learning :)
IT HAS RETURNED! My favorite of Brady's channels.
I am Mohamed from Tunisia.Thanks for the great effort that you are doing to produce such great videos about Messiers ...still waiting the full collection of 110 videos :)
Oh, and YAY for the return of Deep Sky Videos! We missed you!
Thanks for getting more of these done Brady!! You're a champ!
great video! i'm always happy when I see a deep sky video on my feed.
Great video! Thanks for making something for the self-educated, sci-literate layman.
What keeps a globular cluster from collapsing?
Unless it rotates like a galaxy, what keeps the stars from pulling together?
A new video! YAY! :D I love this channel so much. Well I love all of Brady's channels actually.
Glad you like it!
Since you've been gone I've now seen all messier objects with my telescope! Also my astrophotography has improved by huge bounds!
Thanks for the new video, love them all!
Gut, Heir Brady. Very fine return!
"When you've seen one you've pretty much seen them all"... he says
... like a northern hemisphere resident generally does ;)
It may be that globular clusters all look pretty much the same but that just means that they're all equally ASTONISHINGLY beautiful. They always make me think of David Bowman in the movie 2001: "My god... it's full of stars!"
Deep sky objects are my favourite study in Astronomy
WHAAAAAAT New Deep Sky Video?
Does this mean there are more to come? Don't break my heart by saying no
Very glad to see another Deep Sky video after all this time! Still hoping for an explanation of adaptive optics from one of the astronomers (I know it's been touched on before). It's the lasers, you see.
and to think that they are talking about the age, composition and origin of stuff that is visible for us as nothing but a collection of dots
gotta love living in this age
Very nice and informative video. I can listen to professor Merrifield all day. :)
Also nice to see some of his glass models (I can see Saturn) in the background. I've actually just ordered a Milky Way one. I'm looking forward to when it arrives. :D
Good choice, M2 is in Aquarius and will be visible in the night sky this summer. It's right on the back/shoulder of Aquarius and forms a triangle with Alpha Aquarii, otherwise known as Sadalmelhc, which marks Aquarius' neck and Beta Aquarii, or Sadalsuud, which marks Aquarius' waist. Most of the stars that make up Aquarius are rather dim and it's one of the least visible of the zodiac constellations, but if you can find the Great Square of Pegasus look just below it and you might spot M2.
You realy can't imagine how happy I was about seeing this video!
Great video! Welcome back...here's hoping tree are more soon.
Welcome back :), the long waited video !
Hope the professors with RUclips accounts will see this and disagree. You ask really good questions during the videos.
love these videos thanks alot brady
I would be interested to hear a little bit about what it would be like to be IN a globular cluster. If you were on a planet orbiting a star on the outskirts, halfway in, and near the center.
Would it be possible to sustain life there?
How far are the stars apart?
What would the sky look like?
I think these are interesting follow-up questions about globular clusters.
I'll pick one at random, in numerical order.
numberphile, periodic table of videos, sixty symbols, deep sky videos, brady knows how to work a scientist
Heck yes, I've missed this series!
Hey Brady, do you think you can make a series (or new channel) for amateur astronomers? Something based more on the practical side of things, like using your scope, finding objects, astrophotography (amateur level) etc.
Great video! taught me quite a bit really and I almost have a heart attack when I came this sunday to youtube and realised there was a new deepskyvideos video, cheers!
Yesss. It's back. TY Brady :D
nice office :) many windows with trees behind them, Im jelly
***** I was thinking the same thing! :-)
Hello jelly
Yay DeepSky is back!
0:45 Well done Brady!!!
You can see the milky way just fine. As for the universe, discussing the shape or characteristics of it goes very deep into theoretical physics - but generally the consensus is that the universe probably doesn't have a spacial edge (thus, no real shape), but probably a temporal one (as in, time). I suggest you search for the video "How Big is the Universe?" - by Minutephysics, it should help you out.
Finally a new video! Thank! Very interesting!
Strontium and Barium are only made in supernovae so the 2nd and 3rd generations of stars in M2 include material collected from the explosions of previous supernovae. There must be some neutron stars and black holes in M2 left over from those explosions.
Yessss i missed these videos!
I can't wait for my Astronomy course!
We can also know that both generations of stars in the cluster have remnants of supernovi in them, since neither strontium nor barium can be made through simple fusion.
thanks
Sun must have also been in globular cluster once it was born... There's theory that it was knocked out by another passing star that travelled along the Milky Way disc...
There is another video about that. It’s one of the Messier open clusters. Idk what number.
Well, you have an interest in the subjects. Clearly you underestimate how much professors love engagement from the students!
The archetypal 'lovely old Professor'.
Not old yet :) But super sympathetic.
More videos now !
Pedantic moment: Your annotation for Periodic videos at around 0:50 has a typo in it and is "Periodc Videos". Just thought I'd let you know
Kind of a bummer that they consider one cluster much like any other. To me, each are beautiful in their own right.
I don't think any of The Profs would want to teach me ! :)
How does globular clusters form like this?
Jeff Lucas Astrophotographer you cluster together globuloids and presto! Globular cluster.
that picture at :55 threw me into astonishment
I wish The Sky at Night was a technical as this nowadays.
I presume the 'blurring' is because the uncertaintu is been taken into account perhaps?
Very interesting video!
I like the composite thumbnail. :-)
We have Hertzsprung on the x-axis and Russell on the y-axis.
generic property of clusters: do you mean it's like looking at a huge field of flowers & you see clusters of red flowers... is it like red tulips here, red roses there or is it every cluster of red flowers is a cluster of roses?
"it looks like every other globular cluster...when you've seen one you've seen them all"
that seems weirdly significant to me...I mean when you are looking at a vast area isn't similarity a possible pattern? (or maybe they aren't as similar as they seem when looking at them)
Almost said "internet" at 0:30 ;)
Why not? These videos are clearly products of curiosity - the same curiosity a scientist needs.
Mike brought up ages, and I looked through the paper at arxiv and I didn't notice anything regarding the ages of the stars. I wanted to see what the difference was between the younger and older ones. I know M2 is 13 billion years (Gy) old, but surely some of these stars are from different generations. I wonder what the lifetimes of the stars in the cluster have been for the last 13 Gy. If they were, say, 5-10 Gy then there would be 2nd and 3rd generation stars in the cluster today.
Brady, after being surrounded by scientists for so long, has the thought of applying for a science degree at this point ever crossed your mind?
Yay! New DeepSkyVideo! :D
What a pleasant surprise!
Yes a deepskyvideo!
amazing videos!
Different generations of stars are made up of different stuff. It's fairly easy to tell our sun is not a first generation star, because it doesn't contain the elements that a first generation star typically would. So, yes - but it's not easy to elaborate in just a RUclips comment.
Could you make a video about the biggest star known?
Before I saw this I thought the stars were as old as the milky way and the globular clusters, but its the whole cluster that's old, not the stars making them up. I thought the stars were some kind of different process than stars in galaxies some how.
I love this guy awesome teaching thx...
If you want to visualize the density as if you had infinite samples then the result is going to look like a blur.
How close are these stars in globular clusters? I wnonder if you live on a planet around one of the "suns" you can see the other ones a little big bigger as stars than we see stars on our sky...
Damn I still love globular clusters even they all look the same
So is blurring a Hertzsprung-Russell diagram standard procedure, or did some guy just glance at the diagrams the one day he couldn't find his good bifocals?
If the galaxy is basically a flat disc shape then why do we not see (with the naked eye) a visible band around the sky? Even more than that I believe the entire universe is thought to be basically a flat plane disc shape, we should also see a band from this? Is it just that they are far too far away to make a difference to the naked eye and only the stars that are very close to us are visible?
Annotation at 0:52 says periodcvideos
type in planets in globular clusters in google and you'll find a good article about it
Is there any other circumstance where you can say “globular?”
YES MY FAVORITE GLOBULAR CLUSTER!
Then he would not have time for these videos.
That would be sad, although I must add that Brady is still free to do what he wants, after all the videos are free...
Also, no the universe is not in a plane like our galaxy, it is all around.
How does the mass of the star mean that the stars are the same age?
thank you
at 4:20 he's like 'fuck you camera man'
how would that shape their religions and beliefs
I find that very hard to believe...
If i lived on a planet in the middle of M2, how many sun sized stars would there be in the sky??