How a Giant Telescope Works
Ғылым және технология
From ESOcast, explore the state-of-the-art technology behind the Very Large telescope, which has provided astronomers with an unequalled view of the Universe. To obtain the sharpest images of the sky, the VLT has to cope with two major effects that distort the images of celestial objects. The first one is mirror deformations due to their large sizes. This problem is corrected using a computer-controlled support system - active optics - that ensures that the mirrors keep their desired shapes under all circumstances. The second effect is produced by Earth's atmosphere, which makes stars appear blurry, even with the largest telescopes. Adaptive optics is a real-time correction of the distortions produced by the atmosphere using computer-controlled mirrors that deform hundreds of times per second to counteract the atmospheric effects.
As one demonstration of its power the VLT's sensitive infrared cameras, helped by adaptive optics, have been able to peer through the massive dust clouds that block our view to Milky Way's core. The images, taken over many years, have allowed astronomers to actually watch stars orbiting around the monstrous black hole that lies in the center of our galaxy. It was even possible to detect energetic flares from gas clouds falling into the black hole.
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The zoom at 2:50 made me really happy for some reason.
@whopperlover1772
8 жыл бұрын
+rortendaprojekts It was amazing.
@dutchwhitey1138
8 жыл бұрын
+rortendaprojekts It is so beutifull i can understand why
@andremayweather8942
6 жыл бұрын
because it´s astronomy porn;)
@lightseeker1813
6 жыл бұрын
Maybe because it was a CGI and every fake thing is beautiful
@caseyfrederick9521
5 жыл бұрын
It's the closest I can get to achieving my fantasy of flying through space to see anything and everything the universe is willing to present! No physical limitations. Only me and my ability to observe and enjoy all the beauty and wonder within the universe. Brought to you by Neil deGrasse Tyson. sponsoring Neil deGrasse Tyson in the new hit show Neil deGrasse Tyson. Funding is paid in part by Neil deGrasse Tyson. Our other sponsors include Neil deGrasse Tyson's Neil deGrasse Tyson. We thank you... Neil deGrasse Tyson. 😐
Galileo would be so proud to see all these thing today. 2:24 really amazed me. DIdnt expect to be that much clearer!
So excited for the E-ELT! :D That thing is just badass
Finally the video we've been waiting for so long. Thanks!
Nice! I knew about these technologies, but this shows how they work together. Amazing!
Grammar is the difference between knowing your shit and knowing you're shit.
@rexluminus9867
6 жыл бұрын
AstronomyGuru84 That's a real good one. 😂Haha! *
@ajcook7777
4 жыл бұрын
People who don't know grammar don't know they're shit, reason being, if they knew their grammar was wrong they would know grammar...
Nano-meter precision? OH MY GOD. I'm so happy that I was born in this era of extremely high technology! :D
@johnerwinbautista8953
4 жыл бұрын
It is the year 42,069. We have finally achieved time travel.
@WetaMantis
3 жыл бұрын
@@johnerwinbautista8953 42069 kzread.info/dash/bejne/loWrltlyh8q-k7Q.html
@DR-bq4ph
Жыл бұрын
@@johnerwinbautista8953 and you came back from the future to tell that ? Thanks
Once again it is proved that SpaceRip is indeed the very best of my subscriptions. Thank you.
I can never seem to get enough about space. love this channel (:
omg great thanks for uploading this. was really interested in knowing under the hood of these hi-tech telescopes
2:52 to 3:22 The scale of everything is just so vast. Incredible.
been there, Chile is such a beautiful country!!! great upload as usual SpaceRip!!!!
The mirror thickness is te same as my telescope mirror diameter,....
@dnjj1845
4 жыл бұрын
Haha
@Handles-R-Lame
3 жыл бұрын
Lol im jealous but thankful the right people are using this amazing tech
Can you explain this further? I'm no scientist (obviously), but I find this stuff fascinating and would like to learn more.
This video make me want to buy telescope who doesn't love space lol i love it
Nice video
wish i had one of these in my backyard...oh wait.. i dont even have a backyard. :(
@imonlyhers.
3 жыл бұрын
hahahahahaha 😂😂😂
I always wondered what that orange laser was when I saw videos of the VLT!
I'd love to see proplids with such a high definition!
nice. Enjoyed it
At 0:05, Alpha (Toliman) and Beta (Hadar) Centauri, the Coal Sack Nebula and Carina, then, the Vela's Constellation, all of them at the Milky Way's Equator. A very interesting video. Thanks you.
Very good video :) I have enjoy it
Super Super Súper video!!! I love it thanks
Well, Hubble, as any space telescope has a very big advantage over earth based ones: an earth based telescope can be pointed to the same object for only a few hours because of the earth's rotation. A space telescope can be pointed to the same direction indefinitely if desired, thus gathering a lot of light and consequently being abble to see extremely dim objects. The VLT has a much larger resolution indeed, each one has its advantage. But it's not just the chalenge that makes the hubble popular
I never thought I'd say this, I want to go to the desert.
@faisalalarfaj5617
5 жыл бұрын
Welcome
@faisalalarfaj5617
4 жыл бұрын
@@MATRIX_7 تشوف كيف يعني يقصد الصحراء من كثر ماهي سيئة عمره ما كان وده يروح لها الا الحين هههه
thanks guys really nice video :)
when it comes to scientific usefulness, we definitively need both: space telescopes for highest resolution, and for all wavelengths the atmosphere absorbs, like infrared / ultraviolet / x-ray, and ground based telescopes for gathering the large quantities of light required for spectroscopy and for everything else that can be done without a risky and expensive delivery into orbit or deep space. All is required, and so far better "eyes" have ALWAYS led to new and unexpected discoveries.
Es impresionante cuando la tecnología puede interpretar la más mínima cantidad de luz reflejada en un espejo; buen trabajo y felicitaciones a todos los colaboradores de ese proyecto astronómico
If the VLT's light (from the different scopes) can be combined to make a virtual scope with an aperture of 130 meters, why are they building the 40 Meter E-ELT? What is the benefit of the 40 meter E-ELT over the combined scopes of the VLT forming a 130 Meter virtual scope? Is something lost in Interferometry technique that can only be achieved by one single optic (one single segmented optic) like the E-ELT?
@ironcito1101
8 жыл бұрын
+jinxy72able Interferometry increases angular resolution, but it doesn't collect more light. A larger-diameter telescope collects more light, which is really the key to better astronomy. From what I understand, interferometry involves many mirrors and other optics, so a lot of light is lost, and it's really only useful for bright, point sources like nearby stars. It's not useful for faint or diffuse objects.
@anomalyp8584
8 жыл бұрын
The less interference and tampering, the cleaner the image. Also you will get better resolution i believe because it's one giant mirror instead of in distance spaced seperate mirrors. I compare it to pixel density. That is how i see it.
@dantyler6907
6 жыл бұрын
Nothing replaces aperture. There are some applications that get by using multiple mirrors spaced apart in a specific way, but NOTHING beats aperture. This is why scopes will always be built bigger: More can be observed with bigger eyes. Always.
Beautiful Magic!! Thank you..
Can anyone provide links on what resolution is in a telescope?
Crux Australis? Bit difficult to see from here, old boy! :)
How do telescopes that large see anything? All the support structures seem to block a large portion of the mirror.
i think at the end we all find out exactly where we came from. this idea and the curiosity is so big that i think the human kind will never quit searching
Really nice question you ask. :-) Let me try to explain how I think why is the hubble is more popular. The answer is actually in the video it self. Hubble is a space telescope that means it does not have to deal with atmospheric turbulence therefore there is a benefit not using so many devices to correct the image. And also the Hubble has the cability of exploring any part of the sky however the ESO Very Large telescope has only the South Hemisphere of the sky.
I want one of those small ones in my backyard (:
Watching this,my mouth,and my eyes were wide open and my mouth was dripping with saliva without me noticing.
The greatest thing about space based telescopes is that you can detect certain kinds of electromagnetic radiation that is normally absorbed by the atmosphere. Such as x-rays and infrared. Ground based telescopes are more cost effective and last longer. Plus they can be maintained and repaired easily if needed. They both have there advantages and disadvantages.
Extremely Impressive Telescopes 🔭🔭😘😍❤💕💞💞💕❤😍😘👊👊👊👊👊👊👊👊👊👊
awsome video , pirtty epic
I would die to take photos with that thing! Omg... Nerding out... *faints*
Hell yeah, interesting, what we would be able to see..... :))
At 6:35 you can see the pleiades star cluster OMFG 😍😍😍😍
I have a question, there has to be dust that gets the mirrors over time. How is this cleaned off? I hope you don't use Windex.
impressive
They would be artist's interpretations; computer generated images based on what we know of the planet.
where is this location at?? thx
It is extremely difficult to launch large things into space. As you add more weight, you need more fuel, which is more weight as well, meaning the need for fuel increases exponentially with size. They are currently working on the James Webb telescope which is supposedly going to replace Hubble as the top orbital telescope. The James Webb telescope is nowhere near the size of the VLT, however.
Hopefully I stay alive for telescopes that will eventually track the entire view from any point on Earth in real time.
نظام الكون Hi I have questions about the system of the universe and the laws of thermodynamics . That space is within the universe . Question: Is there an area before the existence of the universe? second question : Where did this area come from? The third question : On the system of the universe in the laws of thermodynamics Is the system of the universe isolated, closed or open ??? Please send these three questions to cosmologists .
@pavelbaidurov228
5 жыл бұрын
Use google.
@MuntahaZad
5 жыл бұрын
السلام عليكم ورحمة الله وبركاته أخي المسلم فتبارك الله احسن الخالقين.
It's a shame they couldn't actually explain how it worked rather than what the method was called. Perhaps a description of what laser interferometry actually is, or how exactly combining them simulates one large mirror? Please do not assume that the general public are idiots. If we have taken the time to find this video the odds are we are not scientifically illiterate. Signed, Every vaguely educate person ever.
@goygoddess7399
6 жыл бұрын
@Benjamin Swan- He did tell you at least a few times if you were listening closely......Magic tricks, miracles, magic, and more magic tricks! Recently in the news (April 2018), again,- 'Scientists (at NASA and Oxford) probing Uranus said that it smells like farts and rotten eggs'. The ones who the truth and who put on these CHARADES are laughing at the sheeple. It is all spell-casting and MIND CONTROL.
@existentialnihilism
5 жыл бұрын
lol
I'm talking about direct photos of exoplanets. We already have a few photos of exoplanets, but I'm wondering what kind of resolution we could hypothetically get in the future. Could we take photos of exoplanets the way we take photos of Mars?
its nice soo good
NIGHTS IN ATACAMA ARE GORGEUS!!!!!!!!
i would love to build one of those.
oooooooooooooooooh very nice
Look up Fomalhaut. It's the brightest star in the constellation Piscis Austrinus. It has a planet, Fomalhaut b, that was directly imaged for the first time in 2008.
Meade MAX 20" ACF. 36000. The half-meter semi-pro workhorse. 50K with PC, sofware, and CCD/CMOS
Is this place in an Earthquake prone area? I know the desert makes the night sky clear, so it is a good place to have it.
When your mirror is thicker than most telescopes width...
I was going to say, isn't this a step backward from segmented computer controlled mirrors that have no real limits.
Is it possible to create a telescope that can see exoplanets the way Google photographs the earth with satellites? Is such a resolution possible?
...second comment but popularity is a different story, popularity is more about us humans and the media. And with my comment i tried to explain just that, while hubble and the VLT both make awesome contributions to our understanding of the universe, hubble managed to tickle the nerves of journalists and to fit their taste time and time again while the VLT just exists and works nicely, like a clockwork. Hubble is more like a rollercoaster.
hubble might also be more popular because it makes bigger news. For maintenance and repair, astronauts need to risk their lives and go up there and do a spacewalk, which makes global headlines. Installing some new equipment at the VLT doesnt make global headlines, because there is no risk, no spacewalk. so maybe hubble is more popular simply because it made global headlines and got discussed by virtually every TV news channel on the planet for at least 4 times.
So where is this place!? Chile scopes? Many mountain ranges there! それで、この場所はどこにありますか! ? チリのスコープ? そこにはたくさんの山脈があります!
is that vela pulsar in 6:38
i loved this video, so computer technology is a must and only glass layers at distances arent enough to explore the universe, the history is corrected...
ok,ok! but I ask: from nothing is possible to obtain something?
Oh my SCIENCE!!!
I wish in have a telescope like this
It's a thrilling time to be alive. On the cusp of unimaginable discovery and exploration. And petty ancient dogma wants to trash it all.
I'm curious, if there is an expert, here: Will there be truly massive visual telescopes? Or is the cloud system even better and as such a group of these bigger telescopes suffice?
Earth awakes to her environment and open her eyes...
It would be nice if I could understand what your opinion even was.
Space Taxes! Genius!
I would like to spend a vacation at that observatory. With enough "controlled substances" for the duration of the vacation :o)
@rosepalad3991
4 жыл бұрын
Lsd and dmt and good dank weed
I know ;) JWSP is optimized to see farther than Hubble. That means at greater redshifts. But Hubble did great for promotinging astronomy...
The images we get of stars are blurry when you zoom in on just the star, so the planet's shadow "blurs" over the entire image, reducing the amount of light we receive from the star ever so slightly. Also, we can tell the atmosphere of an exoplanet because certain gases reflect certain colours, and we can measure this difference in colour when some of the star's light passes through the planet's atmosphere and towards us.
make a presentation on JWT!!!!!!
A little bit of Stargate Universe-ish music at 2:45. :D
It will see only in InfraRed. That's sad.
I would give all my money i have in my life to have one of those telescopes
Look when each saw first light, when they were first used. It took many years to beat the Hubble from earth, and the Hubble is a small mirror, compared to these giants.
cool
Hubble's capability goes far beyond any ground-based telescope could hope for, mostly because it's in space and doesn't have to put up with atmospheric interference. This means it can get sharper, clearer images of more distant, less visible galaxies. A lot of astronomers agree that the Hubble Ultra-Deep Field is the most important photograph ever taken.
why not make a vlt in space? except bigger because of no gravity.
imaged if you got 8 telascops the size of 50 tennis court's and did that vurtual telascope thing , bet you could see some detailed stuff then
WOW
You can see dust from a beam of light that took 3 billion years to get here clearly as we spin around the sun through space?
Can it find my check
@midnightumbrmoon3644
3 жыл бұрын
Nope, also you probably forgot this video since this was from two years ago and no one ever comments on it
É necessário uma lente de 30km de diâmetro.
exactly
Why Hubble's telescopes are more popular than the others?
5:19 Optical interferometry is something of a mirror-cle.
@n00fer
5 жыл бұрын
Well played
@Whadatd
5 жыл бұрын
Stop, just stop.
stars... yeah.
Why are alien and ufo tags?
If the human eye uses a retina to focus light in order to see and a telescope just magifies that then your sight is just capturing light and reflecting it off an image so it would be impossible to see something light years away because you'd have to wait light years for that light to travel that far and then capture it
@tmgmark7566
7 жыл бұрын
Corny Martens no, that light has already reached our planet.
@asifsal7124
5 жыл бұрын
As the light has reached us, So it is like we are looking into the past!. Happened millions years ago but We are seeing that now.
wow
fast is the best mega project!!!
2:50 prepare to get your mind blown out of your brain.