How Many Stars Are There?
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: to.pbs.org/PBSDSDonate
Counting stars from the shore of the cosmic ocean…
Subscribe: bit.ly/iotbs_sub Twitter: @okaytobesmart
↓ More info and sources below ↓
LIKE THE SHIRT I'M WEARING? It's glow in the dark! You can get it here (along with space undies and other good stuff): www.etsy.com/shop/makeitgoodpdx
How many stars are there in the universe? Are there more stars out there than grains of sand on Earth? Thanks to advanced space telescopes, we've been able to peer farther into deep time and the distant universe than we ever thought possible, and we might finally be able to answer these mind-boggling questions
Every star visible from Earth (naked eye): en.wikipedia.org/wiki/Bright_S...
Number of stars in the universe (estimated): www.universetoday.com/102630/h...
Hubble gigapixel image of Andromeda: www.spacetelescope.org/images/...
Hubble eXtreme Deep Field: xdf.ucolick.org/
How big is the sky? www.badastronomy.com/bitesize/...
How much sand is there on Earth? www.hawaii.edu/suremath/jsand....
What would the cosmic sandbox look like? what-if.xkcd.com/83/
Carl Sagan's Cosmos: "The Shore of the Cosmic Ocean": • Video
Have an idea for an episode or an amazing science question you want answered? Leave a comment below!
Follow on Twitter: / okaytobesmart
/ jtotheizzoe
Follow on Tumblr: www.itsokaytobesmart.com
Follow on Instagram: / jtotheizzoe
-----------------
It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe
Email me: itsokaytobesmart AT gmail DOT com
Facebook: / itsokaytobesmart
Google+ plus.google.com/+itsokaytobes...
For more awesome science, check out: www.itsokaytobesmart.com
Produced by PBS Digital Studios: / pbsdigitalstudios
Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Andrew Matthews - Editing/Motion Graphics/Animation
Katie Graham - Director of Photography
John Knudsen - Gaffer
Dalton Allen - Post-Production Intern
Theme music:
"Ouroboros" by Kevin MacLeod
Other music via APM
Stock images from Shutterstock
-----------------
Last week's video:
What Color Is The Universe • What Color is the Univ...
More videos:
Why Does February Have 28 Days? • Why Does February Only...
Why Vaccines Work • Why Vaccines Work
Why Are Some People Left-Handed? • Why Are Some People Le...
Where Does the Smell of Rain Come From? • Where Does the Smell o...
Пікірлер: 523
this video was just beautiful.
@arnoldbiggins9570
9 жыл бұрын
Sam, why you here how mind=blowed
@RhysticStudies
9 жыл бұрын
Joe is my homie! also, I wanna get more smarter :)
@brnmick
9 жыл бұрын
yea i think the choice of music in the background also helped to make this video pleasant to watch
@Deelushtrations
9 жыл бұрын
TheMagicManSam I am sorry I couldn't resist but it's just 'smarter'. The comparative form of the word 'smart' only requires adding -er at the end of the word, not adding the word 'more' before it. And of course, there are exceptions. Certain words require adding 'more' before the word to make it comparative, such as 'more beautiful', 'more awesome', etc. So it's only one way or another. You cannot use both the "strategies" at the same time.
@Mrshadowman460
9 жыл бұрын
A explosion would make it even better
This was beautifully done, Joe!
@yashraja518
4 жыл бұрын
Thank you
I will never get tired of having the scale of the universe put into perspective. Fantastic video!
NEW VIDEO! How many stars are there?
@noeybell627
9 жыл бұрын
It's Okay To Be Smart Loved this one! :)
@Dr_Bille
9 жыл бұрын
It's Okay To Be Smart Loved this video, it had a sort of mysterious vibe about it. And who doesn't love to just lay on the grass and watch the stars?
@iphil91
9 жыл бұрын
It's Okay To Be Smart a finger through the sand...sounds really awesome.. what about a googol ?? :)
@eloyfranchella3971
9 жыл бұрын
***** I agree at times,the videos are crammed up the ass with knowledge (which is awesome) but sometimes he dose'nt answer clearly but this one he did.
@zuloo37
9 жыл бұрын
***** Better answer, though a bit less than the overestimate in this video: There are about 100 billion (10^11) galaxies in the universe. Each galaxy has around 100 billion (10^11) stars. So overall, there are at least 10^22 stars in the universe... But that's just stars that are currently around, not counting all the ones that existed and died in the past. For a comparison of scale for 10^20, that's around the number of Planck lengths (the smallest possible distance) between quarks in a proton or neutron, which is about a femtometer (10^-15 meter). As for a scale for 10^22... How about the size of a proton to the circumference of the Earth?
I love the feeling I get while learning about galaxies and space! Thank you for this video.
@rajveerkanojiya2985
2 жыл бұрын
You and your mobile is also the milky way galaxy
Man, wish this video was longer, so beautiful...
A friend of mine asked me, “How many stars are there?” I said, “Let me look that up for you.” He said, “In a book?” I said, “No, in the sky. Never believe what you read.”
Can't figure out which blows my mind more; the huge number of stars that exist, or the tiny number that we can see, and which SEEMS so vast. I mean, I could count to 9,096. I take more steps than that in two days of running. This seems as strange to me as the septillion stars, which, as you said, is a number that we can't even make sense of. Thanks for giving me much to think about as I have to go do some tedious chores now.
Re-watching older videos while stuck home. Anyway, this really reminded me how much I miss living in the desert, far from any major light pollution (even the couple closest were far, an rather dim compared to many places) where I could get an absolutely stunning view of the night sky. Even in winter at temps below freezing I would occasionally spend a night laying on a trampoline. With blankets, pillows and whatnot to stay warm, as well as snacks, water, etc. of course. Being above ground level was nice to limit critters looking for warmth- though it didn't exactly help keep me warm. But with the right supplies and covers, it was my favorite choice. Absolutely fantastic views of stars, and the milky-way, surrounded by occasional howls of coyotes, and the wind; truly a grand experience. I'd be lying if I didn't say I also usually brought out some music to listen to at times. With or without it was an experience I plan to have again, and can't recommend enough. Even when freezing (especially on the rare 'bathroom' trips) it was definitely worth it.
Last week I watched my first video of yours, and since then I'm just really fascinated about knowing such sciences.... And as I'm a science student I can say you can really explain things very very correctly... Great work
thank you so so so much for these AMAZING videos! it's so hard to pick a favourite! I know that you are actually doing this for (high) school students, but I am a "scientist" (psychologist), almost 40 years old and still just LOVE these clips!!! Thank you, Thank you, Thank you!!!
This truly was a amazing. 200 billion galaxies? That's too mind blowing. I thought there were only 1-100
@Aqselssonii
9 жыл бұрын
go to school
@tenettttt
9 жыл бұрын
Ryanator Can't tell if serious
@sethaaades
9 жыл бұрын
Ryanator And don't forget, this is only in the OBSERVABLE universe. Wich is only an indredibly small part of the whole Universe. There is probably an infitiny of star and galaxies outside our observable universe.
@leighmarquardt
5 жыл бұрын
Ryanator try 2 Trillion Galaxies with new founded research 🤯
Am I the only who thought of "my god it's full of stars" at 1:18
@besmart
9 жыл бұрын
No, you aren't the only one. I was thinking that exact thing when I wrote it :)
@Anansi1701
9 жыл бұрын
No sir, you were not. Love the 2001 reference.
@ThisIs_Tactics
6 жыл бұрын
Nope
@resjon7981
3 жыл бұрын
Enough space for every human to have a few planets each to live on with no neighbours.
@luciferangelica
2 жыл бұрын
@@resjon7981 that's how you get weird space kids in love with flowers
First video I've seen on this channel. Really well done and informative! Thanks!
Haha, KZread's compression didn't really handle all the stars too well! :-)
@besmart
9 жыл бұрын
Really KZread? Dang it, that's just about the worst compression I have ever seen. Am I gonna have to reupload this video? Seriously? You're KILLING ME, KZread.
@chasarr
9 жыл бұрын
No, no. Don't re-upload it! All the stars contains so much information, so KZread have to keep the information down. Usually, KZread can compress videos quite good, but here all the stars appears randomly and unpredictably.
@besmart
9 жыл бұрын
Charlie Ringström True, my perfectionist side will just have to deal with it!
@adambrown1837
9 жыл бұрын
It's Okay To Be Smart KZread uploads lower resolution video first then gradually uploads higher resolutions (It goes up to 1080p for me now).
@dalurinzinia829
4 жыл бұрын
@@besmart May we know what is the background music title from 3:01 to 3:31 ?? it's beautiful
Very nice job man ! Your channel is my discovery of the day, and the video is great. Subscribed ;)
Such a great video, keep up the amazing work!
Awesome video. The universe is truly amazing. As a kid I loved everything that had to do with stars and planets.
This is an especially beautiful video! Congrats!
I love talking about this when I do shows at the planetarium and they get to see 5 projectors on a huge dome, full of stars. Then I show them what our sky would look like with all stars within 100 light years, then show them the Hubble deep field to really set the scale of what's really out there.
I really enjoy your new visual approach, good job :)
Awesome!!I watch it every now and then just for the music!!
What keeps me interested in the stars at night is naming them after people. Makes me feel comfort & peaceful. Plus I'm not so go at science and there star names. "I do what I got to do to remember the stars." The Universe is an interesting place.
keep the videos comming, I've watched nearly all them :)
The analogy with the sand was brilliant!
I like how you presented it... Also the background music that let us inter the realm of space. .
Just thinking how many stars there out there makes me think there HAS to me some other life int he universe other than us. Love these videos, keep up the good work :)
Ok, so how much sand if every star is a grain of sand? Turns out, it's over five times the volume of the sun or 7.4 * 10^33 cubic meters. That's a lot of beaches. Fun fact, as Wolfram Alpha tells me, this volume is only 0.16% the volume of Betelgeuse. That's one way of saying that Betelgeuse is kind of big I guess. No, you still only get one grain of sand, Betelgeuse! Don't you look at me like that, with a septillion stars, there is no special treatment.
I think i can say that i am in one of the bests parts of KZread. Thanks for this video, it's really interesting. ;)
I remember the first time I saw the Hubble imagery. I laughed with excitement, because the galaxies were so beautiful and plentiful.
nice video ,man make more of this cool stuff
It only took one day to make all those stars but the earth took a whole three. Sounds legit.
Superb video. Thanks for this!
It's odd, but with properly focusing glasses, and standing in the Shirley Basin of Wyoming (7000+ feet elevation), the Milky Way resolves to at least 100+ stars per diameter of the moon. Yes, discrete, colorful stars, with a background glow. It is a sight to see. Now, knowing how much of the Milky Way is visible, times diameters of the moon (thumb), times 100 plus stars (10 x 10 or more) are in those moonprints... tells me right away that ~9500 visible is just to make sea-level people feel good.
The sky is mysteriously beautiful and exploring the infinitiness of the sky is more beautifully mysterious.
beautiful, thanks
Just came from the future, the observable universe is now having over two trillion galaxies. Just incomprehensible.
Whoa. Now this is nice. I was waiting for IOTBS upload then it happened. For science!
Video: "How many stars are there?" Pete Puma: "Oh, three or four"
But what about planets!? Love the video btw!
@besmart
9 жыл бұрын
It's estimated that there's at least one planet for every star (and that doesn't count free-floating "rogue planets" that have been ejected from solar systems) so… yeah, you do the math!
@HaloBalla
9 жыл бұрын
It's Okay To Be Smart Incredible, thanks!
@tebogoprince6251
Жыл бұрын
@@besmart so there are more planets than stars right?
That sand-to-star transition. Mwah! Magnifico.
I had a dream tonight, that I was able to visit every star in the galaxy. The sky looked so awesome! :D
does anyone know the background music title ?? it's the one thing that made this whole video look so awesome, just superb music
@dalurinzinia829
Жыл бұрын
no one knows :(
Very good episode! Thanks!
This video is amazing and humbling
What is the background music? It is so beautiful.
@mikkicarr5717
9 жыл бұрын
No clue... that's what I'm after as well.
@razzolap2500
5 жыл бұрын
Ouruboros by Kevin McLeod
@dalurinzinia829
4 жыл бұрын
@@razzolap2500 no bro, that's the intro music, what Mikki Carr and others meant was the background music after the intro music
I counted the stars myself and I came up with 37 gazillion stars.
@isarea_
2 жыл бұрын
Bruh
This video is the reason why i subscribed your channel..
I love the music so much!!
Man... That's really impressive!
anyone knows the background music's title ?? very awesome
This really was a lovely little video. :)
Good stuff man
For every grain of sand there are about 10 000 stars, LETS COUNT EVERY SINGLE GRAIN OF SAND GUYS IM STARTING 1...2...3...4...5...6...7... i already give up, u guys keep going
Such a beautiful video
Cheers .... 1st of all, i would like to say i trully enjoy your show. I saw in a science show that one possible (althought still many many years away) to travel faster than light would be to isolate the Higs Boson and creates "massless" itens that could then be accelarated faster than light. Is this a possibility? In addition, i wonder, are not photons "massless" thenself and thats the reason why they do travel at the speed of light? If so, would it be possible to acelarate a photon faster than the speed of light? Thank you
This video is awesome! :D
Awesome video! Happy i subscribed to this channel XD
That was so cool!
Thank you so much !
1:23 is the cereal I had this morning
Great video!!!
lets play a game 1. lets say life is as rare as one intelligent lifeform existing per galaxy in the universe (human level intelligence or greater). 2. Represent each intelligent species as a grain of sand, 2:54 3. fun part: try not to let the existential dread weigh in
dear gawd the vast emptiness of space is frightening
Best episode ever
It looks sooo crowded. The thing I find amazing though is that how much empty space is out there. This picture helps me understand how incomprehensibly vast this universe is. 00:20 Why is someone riding a canoe on the beach at night? Either that or someone forgot how to park a Jetski. Or maybe I should go to sleep.
@tommacpherson7288
9 жыл бұрын
Probably some local fisherman, out for a pleasure cruise, at night... in... eel-infested waters...
anybody knows the background music title(the one after the intro music) ?? the music made the video beautiful
More important question, why night sky and music boxes fit so well together?
@Ryan-tp1ho
7 жыл бұрын
i was wondering the same thing. maybe because music boxes make that "crystal" sound and aah i dont know but crystal and light fit so well together
It's Okay To Be Smart: "How Many Stars Are There?" Pete Puma: "Oh, three or four"
Is there a limit to bigness & smallness?? Does it go on & on in both directions? If we "look" far enough up, can we see ourselves looking down?
super awesome!
Thank you, Joe!
Amazing !
One of my favorite videos :D
Lately I've been, I've been losing sleep Dreaming about the things that we could be But, baby I've been, I've been praying hard Said no more counting dollars, we'll be counting stars
HOW DOES THIS VIDEO NOT HAVE MORE VIEWS HOLY CRAP
if they think there are billions of stars in the milky way alone, and that there are potentially billions and trillions of galaxies out there... then there must be so many stars in the entire universe that we dont even have a number for how many there are
News flash... The universe is endless and their is an infinite amount of stars.
@razzolap2500
5 жыл бұрын
Harry Plinkett if something came from an extremely dense space and expanded that implies it’s not infinite
So many stars and their systems and yet life has been found possible on just earth
How come when some people fall asleep, they hear explosion noises or the crash if symbals? (This is called Exploded head syndrome, and happens to me)
How can someone not like a video like this?????????????
“This is the andromeda galaxy and it’s filled with STARS” me: “NO WAY”
My idea of the question 'how many stars are there?' is like asking 'how many numbers are there?' If the universe is unlimited than so must be what is in there...
anyone knows the background music title at 0:18 onward ? ?? sounds beautiful
До дрожи пробирает, что в какой нибудь другой галактике другие существа мечтают о том же, о чём мечтаем мы.
3:10 - spetilion in long scale or short scale ?
Is the background music of this video available? ☺
you just make my day
Please, the name of the background music...
@razzolap2500
5 жыл бұрын
Daniel Lames ouroboros by kevin McLeod
@daniellames2876
2 жыл бұрын
@@razzolap2500 thank you
How can we see stars that are far out of range of our normal perspective all over the sky from vertically up to down to the horizon and we can't see other things closer by horizontally on Earth?
I feel really stupid asking this but when you mentioned that scale you said that we could only see 6.5 and above. But I'm pretty sure I can see the sun which is at -27. So does fewer=brighter or do I have to take distance into account?
@MrAlterior
9 жыл бұрын
"6.5 or brighter." Lower numbers are brighter. :) en.wikipedia.org/wiki/Apparent_magnitude
@kiffe22
9 жыл бұрын
thank you ;)
This the list of The stars in the Universe. 1.UY Scuti 2.Westerlund 1-26 3.Betelgeuse 4.VY Canis Majoris 5.NML Cygni 6.KY Cygni 7.Rigel 8.Pistol Star 9.Polaris 10.Canopus
Awesome!
This channel is very cool and it has to be seen by more than 344.000 people. PS: cool video
"Now pick up your sox and find a job! Enough of staring off into space"! - DAD
There is a video over at vsauce saying the exact amount of particles there are in the universe which also could potentially estimate how many stars exists right now
I love this
You don't have to guess. The universe is probably infinite and likely similar from one end to another end. So the answer is unlikely to be any finite number. Number of stars = probably infinite.
I was smiling the whole time watching this, THANK YOU!
So i dont want a Forum based answer for this question im really curious for a reliable source becuase i can't seem to find the answer online so here it is: If that is all the stars we can see with the naked eye, than how many luminous objects in the night sky can we see altogether? and how many of each main like tve Galaxies. please and thanks ✌