The Milky Way Big Picture
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- Опубликовано: 14 сен 2010
- / sciencereason ... The Hidden Universe of the Spitzer Space Telescope (Episode 22): The Milky Way Big Picture (Showcase).
Two and a half billion infrared pixels are exposing our own Galaxy in this new image from NASA's Spitzer Space Telescope!
This is the Hidden Universe of the Spitzer Space Telescope, exploring the mysteries of infrared astronomy with your host Dr. Robert Hurt.
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It's the Milky Way as you've never seen it before! Two and a half billion infrared pixels are exposing our own Galaxy in this new image from NASA's Spitzer Space Telescope! Science is all about getting the big picture, but some pictures are definitely bigger than others.
You may have used your computer to make a large panorama yourself by stitching together a few shots from your camera. Depending on the camera the final picture may contain ten or twenty million pixels. Now can you imagine taking over 800,000 images and combining them into a single two-and-a-half billion pixel image?
Two teams of astronomers have not only imagined it... they've used NASA's Spitzer Space Telescope to make one. And it's online for everyone to explore. Over 50 astronomers have worked on this massive project since the Spitzer mission began. This image combines data from two different legacy projects known as GLIMPSE, headed up by Dr Ed Churchwell and MIPSGAL, led by Dr. Sean Carey.
The picture covers an area of sky as wide as your finger held out at arm's length, and as long as your open arms. That's about 2 by 130 degrees. Though it sounds like a pretty small slice of the sky, it actually captures half of our entire galaxy! Our sun sits a ways out from the Galactic center, so a 130-degree arc takes in most of its area.
And our Milky Way is very thin compared to its diameter, a lot like a CD. So even a 2° wide scan includes most of its disk. The rest of the stars that fill the sky are actually very close to us, filling just a tiny fraction of the disk right around our sun.
A space image this big takes a lot of space to show off. Spitzer unveiled this giant banner, 4 feet tall and 180 feet long, at the 2008 summer meeting of the American Astronomical Society in St. Louis! Since then it's been on display at the Adler Planetarium in Chicago, and at the Griffith Observatory in Los Angeles.
The GLIMPSE part of the survey includes the shorter infrared wavelengths. At 3.6 and 4.5 microns we see blue stars that, in visible light, are completely hidden by dust. Carbon-based dust molecules show up at 8 microns, represented as green. MIPSGAL contributes the 24-micron component, rendered as red. This is the warm thermal glow from dust clouds heated by nearby stars.
Together these observations give us a pretty complete view of stellar evolution, beginning to end, across our Galaxy. These ubiquitous dark filaments are dust clouds so dense they're opaque even in the infrared. They're dense enough to trigger gravitational collapse and form new stars.
The red dots seen along these filaments are embedded protostars only barely seen at the longest, most transparent infrared wavelengths. Once the stars are fully formed and glowing from the heat of nuclear fusion, they illuminate, warm, and disrupt the surrounding dust, creating these dramatic structures near and far.
The stars eventually drift beyond their birthplaces mixing among their older cousins. This diffuse blue glow shows us the overall distribution of stars throughout the galaxy. Eventually the most massive stars die in supernova explosions. We can see their expanding shock waves rich in newly forged heavy elements that will help form the next generation of dust and stars.
The GLIMPSE-MIPSGAL image is truly a pictorial guide to the past, present, and future of stars throughout our home galaxy. Astronomers will study the data for many years to come, and the observations will be a roadmap to guide future infrared observatories.
If you'd like to explore Spitzer's Milky Way yourself, all 2.5 gigapixels are available on our website. You can download the whole thing in segments, or use one of several web viewers that let you pan and zoom through the image interactively. Take a look; you might find something that no one else has seen!
• www.spitzer.caltech.edu/ 
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It's so great that we can snapshot the formation of stars and get a glimpse of all stages due to the numerous samples.
Thank you. Both to the uploader and the minds who made this possible.
Wow, the enormous scale of just our galaxy is mind bending. What an incredible universe we live in.
I wondered when this subscription was going to get interesting.
Good job, guys. Really good!
This is absolutely incredible.. I've wanted to study astronomy since I was 8 and now I'm a student at UCLA. I was an Astrophysics major but got placed in the wrong classes so I had to switch my major in order to have any hope of graduating with a 3.0+ gpa. I feel like I've made a huge mistake and I'm just throwing all of my dreams away by making this decision...
Keep up the great work on the space videos. They are amazing and are a constant reminder on just how insignificant we are in the grand scheme of things.
Thankyou for your effort with this channel..good for you..continue to explore the world and civilisations a wonderful adventure..peace to you x
WOW ! An awsome picture better and than any human artist could have ! Amazing to see such a large view of our Milky Way ! Seeing the evolution of the different stars is so amazing !!
Love it, thanks for the explanation!
That's an astronomer's centerfold.
What a great video! Very entertaining! Very educational! Fascinating! Thanks!
awesome pictures...very good work you made.....
great job, you would make every person in the past who looked to the stars proud of this achievement.
Wow. Amazing stuff!
Nice video, Thanks.
this is stunningly beautiful
Great vid,thanks.I have always loved Astronomy.
Awesome!
awesome! the picture looks beautiful... I wish more people were interested in science and the beauty of it :-)
Very COOL!!!
this is really cool
That would make an awesome poster!
I wish I would have pursued astrophysics when I was younger so I could work at a planetarium. But it's not too late, I could probably work at one as a janitor.
im ur 42,000th subscriber!
pause at 4:00 and look at the top middle. What is that? a cluster of a red, blue, yellow, and an orange star? there is a spiral of yellow too
@ChelseaHysteria I have spitzer photos for my desktop background. Just found them a couple of days ago.
They said this was available for viewing on the web. Where\what is the link? Thanks!
This video looks really great on my laptop or it must be my in my head cause
I love space.
amazing
i love science.
Please come back
hey they got new graphics as introduction and credits. Nice!
If I lived in some other time in the past, and taught myself I'd found something enriching in life, would it be half as good as this? And would I know I was missing something? If I told that past me about this, and I managed to squeeze it into my head, would I find it more mezmerizing, compared to what I previously thought had filled my life more than I thought I could've imagined?
I certainly hope so.
There was an online viewer some time ago on the spitzer website, but i can't find it anymore - does anybody know if an online viewer still exists and if so what the URL is?
Sweet!!!
Individual parts :
spitzer.caltech.edu/images/2680-ssc2008-11a-Spitzer-Finds-Clarity-in-the-Inner-Milky-Way
Zoomable image:
legacy.spitzer.caltech.edu/Media/mediaimages/zooms/index.shtml
This is cool
Totally awesome, I just had a galaxy-gasm
Can you believe that there are millions of people who still think we are the only "intelligent life" in the Universe?
@ProjectDecade You betcha man! I'm glad I'm a free thinking guy!
1:51 thats what our galaxy looks like? how did they find that out? did they calculate the distance between a number of stars and our solar system and in that way measure the size of the galaxy and our position in it?
@fallbread with or without robots?
WOW!
This is what HD was made for.
Why did they stop uploading? :[
@AfroedNinja: Well, at the very least we can get the consolation that we are part of the awesome universe we know and love. Even when we have lost hope in resolving all the problems we have...we are still fundamentally part and parcel of the world. It is only because we are truly physical entities that we can do anything realisable within the universe.
Okay. I want to explore it now? Where do I find the whole picture?
Or the "one of several web viewers"?
I WANT TO SEE!!!!!!!
wow thats cool
ok i cant find the picture anywhere. link please!
ARE YOU SHITTIN ME?!!?!! YOU GOTTA BE SHITTIN ME!!!!!! AND I LIVED TO SEE IT!!!
299,792.458*60*60*24*365*100,000=
just our galaxy alone is about 945.425.500.000.000.000 km across 945.4255 quadrillions
945,425.5 (trillions)
945,425,500 (billions)
945.4255 millions of billions (pretty much a billion squared kilometers)
Rest in peace.
Earth is a single speck of dust floating around in the janitor's closet in one of the hallways of the penal colony.
@nishbrown (drum beat and snare)
@c0l4p4rty They don't know how the galaxy looks like since you can't observe it from outside because it is impossible. But they can estimate how it looks like by comparing similar galaxies with our own and creating a visual representation of our galaxy.
Would suck to accidentally get those pictures in the wrong order *doh!*
I want it as my bedroom wallpaper
at 4:24 there are 2 strange object's in the footage top left hand side,behind the presenter......
@cjsinclair: what do you mean?
I wonder how many of the stars have disappeared since they took the photos? :)
@Rajkozuluf yoooooouuuu!!!
You could say this video is all about the big picture.
any one knows how many stars there are in our orion arm and how is the result calculation acheived??
how is it know there ar e 300 bilions stars in the galaxy?
cool
i love the universe
This is insane.
so space waiting for me !!! It's in the big picture
Wow
So they have basically made the ultimate dot to dot
@cjsinclair: What makes you think that searching on google will provide you with more accurate facts than any person down the street [who doesn't know about what's happening in astronomy]? Google is only a search engine...it can't make you think.
I wish I had a 180 foot long image of space lol
@ProjectDecade Um, not ALL creationists believe that. Again, if you knew much about them....
@phuhcue that happens pretty often these days :P
google "a glimpse of the milky way" and launch the viewer
why do I see the Chevrolet bowtie in the middle of the universe picture at 2:32 and 4:50?
Our galaxy explained in 5m 26s.
@julsHz I would like to hear that technology and science is being concentrated more on our home planet, not looking elsewhere. This stuff cost an absolute FORTUNE!! From every single mission with the billions if not trillions of dollars spent on research, it teaches us about the relativity and quantum theories etc.. etc.., yet we are neglecting our own species and planet. I say we concentrate on NOT being GREEDY, helping ourselves first, then look elsewhere. Educate lagging countries=peace
And in the end, the observable universe is but a projection of our consciousness. Is it real????
@jebus6kryst I thought it was made so we can actually read the warning in medication comercials
i liked that guy he did good
@borg386 Not simple at all really. You are apparently misinterpreting what you just quoted.
@pmsou well, i consider myself agnostic, i don't completley doubt the existence of a supreme being. I just don't believe in the ones from organised religions. Or that i'll be judged for every mistake i might have made in my life.
If it is your faith though i'll respect it, so long as you respect my position
wow isn't technology amazing.. i'd love to be round in a hundred years from now to see whats happening!!
oops i juzt farted
@ihatelumberjacks Oh dear.
@JustAskTokes You can't test something that never existed
@ihatelumberjacks Waaaah, waaaaah, I want my ba ba!
That's going in my bedroom.
@borg386 "...My opinion is that God, in order to confound those who are not chosen to believe..."
So you're saying then that God predetermined who would believe and who wouldn't? That doesn't seem contradictory to you? How could a God be just and loving, but pre-package somebody as hellbound? How could creating somebody intending for them to go to hell be just and/or loving?
Why are they displaying it in a line in real life? It should be an ellipse.
Not necessarily accurate either. Different times of the year the angle changes.
@AfroedNinja Hey, humans must spread life out in the universe without delay.
We cant sit here at the earth, thats a suicide.
Think that a cataclism, a war, an asteroid and a lot of things can erase this planet in any momment.
Once we have a second planet, we can fix without hurries earth problems. :-)
@pmsou how do you know he is going to judge us one day? because it was written in a book almost 2000 years ago by a bunch of people who didnt know any better and passed on through generations, with who knows how many edits to suit the church at the time.
good luck with that
What happened to this channel?
@TheReaverOfDarkness
yet so many dont realize it. :-/
@JustAskTokes You doing all wrong... start again.
:-)
@pmsou a few questions to a confused observer. 1. u believe in Microevolution but not Macroevolution? LOL how so. U realize that a lot of little Microevolution leads to a Macroevolution in a species? without one the other cannot exist! 2. Did u say u believe we as humans came from A nd E around 6000 yrs? 4. If u believe in life in other planets do u still think we r gods chosen beings. also aliens in heaven? 5 if the bible is flawed in most respects why take it for the word of god?
I want the true picture... Looks like this are computer generated pics.. Why so colourful..
Joel Legrand thank for the images!
The data collected is just numbers. No actual physical light. Those numbers correspond to frequency and based on the elements present which make up the clouds of dust. Like green color for oxygen. The true color is 50 shades of grey. Most people don't find grey colors very interesting and NASA needs investors. So beautifully colored images make money for NASA. It's cheap and maybe dishonest but the truth is there if you really want to know.
@borg386 We can prove that these things took place over billions of years. Now if you want to argue what "time" is to God, then I'm afriad neither of us will be able to be correct.Unless you claim to have some sort of proven measurement of Time to a divine figure, both of our opinions will have to stay opinion.
@MetastasisVideos
that would seem to be the case, because our earth is only a smidgen of time compared to eternity.
God is not constrained to time or governed by it, so as far as He is concerned His "project earth" is complete and finished.
But as far as we are concerned, our earth has been and may likely continue for many more years.
He is not being unjust because all those whom He chose to believe will believe, and all those whom He don't want to believe, He will blind them. His choice.
@shoa31 That's because he doesn't exist.
@JustAskTokes Haha, yes there's worse insanity indeed. Good to see some clear thinking believers:) But yet in your comment you mention: ''God wants..''
For as far as im concerned the only thing happened is that a view people WROTE that God wants something. Therefor it is insane to me. But no offence, we are free to think what we want:) Bless us for that;)