World's Biggest Optical Telescope - ELT

The World's Biggest Optical Telescope, the Extremely Large Telescope is a 39.3 meter behemoth.
But will Starlink ruin it? • Can SpaceX save astron...
When completed in 2024, it will be the largest optical and infrared telescope in the world. #telescopes #elt #extremelylargetelescope
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[@MarvelousLXVII]

I'm 52 and I have a 12 year old son. When I was his age the 200" Hale was what we junior astronomers talked about. I used to write letters to "The Hale Observatory" in Pasadena and they were always kind enough to send back black and white pictures. It would be so amazing to be my son's age again because the next 40 years are going to be amazing.

[@LaunchPadAstronomy]

I’m about the same age. I remember when Hale was THE telescope as well (given the Soviet telescope had problems). We’ve come a long way since then and are heading for some pretty amazing times!

[@fuckednegativemind]

I just love those old telescopes with their massive mounts and their beautiful design. What a proof of ingenuity, and the evolution of big telescopes is amazing.

[@evertonporter7887]

It's incredible that we'll soon have telescopes with mirrors the size of a football stadium soon. Let's also not forget the engineering behind these marvels, without which no science can be done.

[@DanMorose]

Civilized World: “$1.5 billion for a telescope? We can’t afford that! By the way, did we get approval on our annual $750 billion military budget?”

[@cygnus1129]

Man.. For anything space related,the 2020's are sounding awesome.

[@LaunchPadAstronomy]

Yep, and it will get even better with future-generation instruments!

[@mattcraft8610]

Yesss

[@joeshmoe7967]

You are assuming the jw telescope actually yes launched in the '20s LOL!! I would not bet my life on it. But yes over all things are looking cool. Space is awesome. I am just getting back into exploring and photographing, after a long time away. Still have my trusty celestron C-8 from 1978

[@parkershaw8529]

Yeah, we are literally at the beginning of the Expanse!!!

[@connortoenail]

Elon Musk will do extraordinary things next decade.

[@NickatLateNite]

If you built a Basically Large Telescope and put it on a hill in the small town of Rye, East Sussex, England, you could possibly have the most famously named telescope of all time, you would have... a " BLT on Rye " !!!!

[@reason5591]

C l e v e r!!!

[@highpointsights]

that is too too funny!! Thanks for sharing that nugget!!! There is a "Rye" Arizona which is a CDP "census designated place as it has a population of 77!! THANKS AGAIN!!!

[@highpointsights]

I may make them a proposition!!!

[@srinitaaigaura]

Next telescope will be called the Overwhelmingly Large Telescope. The next one will be called Oh my God what a huge telescope! The next one will be called WTF telescope. The next one after that will be called the speechlessly large beyond large telescope. The next one will be called I can see aliens eating breakfast with my indescribably unfathomably large telescope! Just kidding. This is some remarkable technology to build something of this size and capability. How do they even design stuff this complex?

[@LaunchPadAstronomy]

So that's the OWL, OMGWHT, WTFT, SLBLT, ICSAEBWMIULT. I'd support those!

[@srinitaaigaura]

@@LaunchPadAstronomy Like your spirit mate!

[@paulwood6729]

Bloody Large Telescope should be the next one

[@Vanyxda1]

Or .. Oh my god i cant believe it is it real this is amazing telescope

[@richardsilva-spokane3436]

srinitaaigaura ha,ha,ha,ha,ha!!!!!

[@thedankatheist3466]

These names are fantastic

[@LaunchPadAstronomy]

🔴 Will Starlink ruin the night skies for these telescopes? Take a look here: kzbin.info/www/bejne/qaC3opZnjsSki5o

[@dc43083]

Launch Pad Astronomy How will it compare to the James Web Space Telescope?

[@theinfiniteblackvoid234]

In the first 15 seconds of your narration, your voice sounded like you were seeing "stars". And not the ones in the sky either.

[@messyties]

Should have made it bigger

[@LaunchPadAstronomy]

Well, it'll still be extremely large :)

[@Quickshot0]

But the OWL - Overwhelmingly Large (telescope) is a rather clever and catchy name. Well, perhaps after they finish the ELT they can come back to the idea of an even bigger telescope and recycle the name.

[@LaunchPadAstronomy]

I hope so, too 👍

[@cesteres]

Running out of those perfect mountain tops

[@evoman1776]

Can't wait for this one and the James Webb

[@Eric12886]

Same but they keep delaying it for more money

[@jerrypolverino6025]

Eric Chrisman Not ture Eric. it’s cutting edge and very difficult.

[@vume7722]

It's gonna be a long, I mean very long wait.

[@noahway13]

I predict this one will be.operational before James Webb.

[@nshea3286]

@Donald Kasper Stars rotate around their galaxy. The galaxies move. Just like Andromeda is moving toward us. Light gains energy and shifts blue when moving toward us(gain in frequency) and red when moving away(loss in frequency). This is simple physics. We weren't even sure other Galaxies existed, until 1929 when Hubble published an article - using Cepheid variable stars to measure distance - that showed Andromeda was not in the Milky Way, but another Galaxy.

[@ssabykoops]

16 times the detail ,, yea i've heard that before

[@hayabusaorlovina2761]

76 telescope

[@billcipher9068]

16x the disappointment

[@claymournesden8705]

I had no idea ground based telescopes could have systems to counteract the atmosphere's turbulence. Pretty interesting stuff, and exciting to think about what discoveries the near future holds!

[@Dan5482]

Another amazing, very informative video. And all metric ☺👍. Thank you, Chris!

[@LaunchPadAstronomy]

My pleasure. Glad you enjoyed it, Dan!

[@GoPappyGo]

Well done! Thank you for that info. I will keep looking up.

[@LaunchPadAstronomy]

Thanks, and very glad you enjoyed the video!

[@alibektas7535]

Thank you Christian.very nice, amazing video..Please continue to produce videos..

[@LaunchPadAstronomy]

Thank you, Ali I really appreciate it!

[@DailyEventsWorldwide]

Sweet video Christian!! Glad im subscribed. Stay Aware and prepared:)

[@LaunchPadAstronomy]

Glad you enjoyed the video. Thanks for the feedback!

[@chasebob8327]

Im waiting for the MBTY telescope Otherwise known as "mines- bigger- than- yours"

[@jannbrixrealubitwhitaker5765]

Based on the name, that will be china made ✌️

[@Mr.Deleterious]

I love your content. Please continue to produce videos. Thank you.

[@LaunchPadAstronomy]

Thanks Shay, I appreciate it.

[@aztronomy7457]

And here I am debating between 80mm and 100mm for my next scope lmao

[@attoblaze3395]

man i cant wait for the future! this is going to be awesome

[@markphilpot4981]

Can’t wait to see the images of the finished product! Should be spectacular! Bring it!

[@screenname1]

They'll be spectacularly made up.

[@kitogrova435]

Absolutely beautiful small documentary. Great job.

[@hieroja9774]

Really professionally made content! Keep it up :)

[@LaunchPadAstronomy]

Thank you very much, I really appreciate it!

[@amazingOst]

Hope we can get a closer look of Oumuamua! Must be top priority!

[@Paul_C]

Why, it's travelling away from us at speed.

[@martynh5410]

What an amazing telescope! It would gather a bit more light than my 4.5” telescope. I think about 123,000 times as much but my math could be off!

[@SeanDS89]

6:02 ok this sounds very cool! Can't wait to see what we learn from this new scope :)

[@cerverg]

Put it on the Moon it'll be fun!

[@Solid_Snake88]

cerverg lmao

[@hayabusaorlovina2761]

No light polution, different atmosphere. That's maybe revolutionary idea!

[@kabretenidderuon5712]

Good idea but too much expensive, time, and risky (no atmosphere on the moon to protect it from asteroids,...).

[@mackdarwinian8054]

Next big telescope will be called "Damn"

[@space-timegambit.by-abdull4052]

Thanks. Informative. Go on.

[@danielramirezcruz.2209]

Super Super video I love it thanks... great information great work ...

[@LaunchPadAstronomy]

Thank you!

[@AndrewK]

Very informative video! :D

[@LaunchPadAstronomy]

Thanks! Now get back to modding Owen Video's livestream :)

[@AndrewK]

I can do both! :D

[@LaunchPadAstronomy]

I'm not worthy...

[@marwanedalal3510]

Thanks for the pleasure of making such informative videos❤

[@Norman92151]

FASCINATING!!!!!!! Let's get going!!!

[@oozorakyou]

"that isn't my final form yet" - telescope

[@jc4evur661]

I wonder how well this scope will handle all the hundreds (soon to be thousands) of Space X satellites flying overhead? What elevation is the mountain this scope will rest upon? Thanks for a great video

[@MultiScrotch]

starlink is an infection. This madness must stop.

[@killertomuffel7180]

"16 times the detail as Fallou... Ehm Hubble "

[@GrantLanning]

Just saw you over on Fraser Cains Channel so I popped over and just watched your video. I have what may be a dumb question but how do they keep such large telescopes clean? Whether its just dust settling on the mirrors or bug and bird droppings?

[@LaunchPadAstronomy]

Thanks for dropping by! Yeah, that's an important question. When it comes to segmented mirrors like ELT, GMT, Keck, etc., individual segments are removed for cleaning and replaced with a spare. In ELT's case, one will be removed for cleaning every day. Also, the dome is air-conditioned during the day to keep the dust down.

[@cookieshousecannabisco6963]

I have a 10" dobsonian and i'm constantly astounded by what I can see just roaming the night sky by hand; but I've always wanted to take something this size for a spin with my right eye. (I know this telescope isn't for direct observation) 3:05 If I had that... you'd never get me inside. I'd be out in the yard in january wearing two parkas

[@robertbilling6266]

Very interesting video. Thanks! I really hope we'll be able to map an exoplanet in my lifetime.

[@evertonporter7887]

Imagine in the future seeing a picture on a newspaper front page of an earthlike planet, with oceans, clouds, polar caps, continents, and patches of green indicating signs of life.

[@500features]

Your channel is criminally under subscribed! I hope luck favor you soon.

[@sixtearsgalaxy]

Wow, thought the Magellan Teleskop with 25meter is huge, but this is stunning!!! Great Job!

[@LaunchPadAstronomy]

Thanks!

[@richardsilva-spokane3436]

Thanks Launch Pad. I was referring to deep field and extra deep field imaging. Hubble would spend weeks for its exposures. How will these Very Large Telescopes duplicate such ambitious exposures?

[@LaunchPadAstronomy]

I'm not certain, but my guess is that these telescopes wouldn't be well-suited to those types of long-duration imaging because of the dynamic atmosphere. Adaptive optics will help in the near-IR, but it would still need to be a cloudless, steady night for several nights. So yes, it might be doable but could they justify that much time for an uncertain payoff?

[@joeshmoe7967]

Well for one thing, where Hubble is, it is always night time. Deep field was days of exposure. Of course stacking is always an option and you can add more and more data in the future. Amateurs are are accumulating many hours of data, over years.

[@tauceti8341]

These videos make me happy so many countries coming together for such an insane space endeavor. That mirror technology is HUUUGE to correct for earths atmosphere. These pictures are gonna be SOOOOOOO sick. I can't wait.

[@mwj5368]

Decades ago I use to wonder why they didn't put enough emphasis on advanced telescopes terrestrial and in outer space instead of so much in the other areas of astronauts etc. Maybe I'm wrong as the technology wasn't advanced enough... yet the could've focused on that as Hubble was doing so well, teaching us more about the universe than anything since Galileo is what I read.

[@fliper2011]

When I heard how this telescope corrects atmospheric turbulence I O-faced.

[@malakiblunt]

thank you

[@mcximus]

Human innovation is amazing.

[@danielramirezcruz.2209]

This channel is fantastic ...

[@LaunchPadAstronomy]

Thanks!

[@nikolamarko9345]

Just wonder - would be possible to mesh light from VLT and ELT by interferometer technique and get this way even better resolution, or is VLT too distant and with actual technology its not possible?

[@13_cmi]

Very large telescope, extremely large telescope, and overwhelmingly large telescope. Good names. Flat frames on these things have to be fun

[@jordancox8294]

So exciting!!! Thank you for this content!

[@LaunchPadAstronomy]

jordan cox thank you so much. And I agree, it is exciting!

[@jordancox8294]

Launch Pad Astronomy I'm going back to school for astrophysics in two years so this is just wonderful timing.

[@EdwardPCampbell]

This telescope site is on my bucket list ;)

[@karlthemel2678]

Response to: Can the E-ELT be upgraded to 42m diameter? Thanks

[@jasonmarmor4683]

Outstanding video and impressive what humans can do!

[@rd9831]

Wish all success to the endeavour

[@Pauly421]

Aw man it sucks that they had to lower the size due to budget... Just divert a few billion from the US defense budget and bam! 100m telescope! Such a shame we're being held back as a species by such petty things.

[@EricMalette]

Not sure US military budget has anything to do with ESO but yeah, cut back on something!

[@maverickrider4591]

well Bevus, it will be the European Snowflakes duty to cry over this, not any thing to do with the USA.

[@kiisseli1337]

Don’t worry, they will make it one day. This is already much larger than previous ones, so it’s ”big enough”, it’s like getting one smaller and one bigger chocolate bars instead of just one large.

[@gentil77]

stop wasting billions on aircraft carriers that are sitting ducks now for the new hypervelocity Russian missiles

[@AGH331]

@@gentil77 This went from 'Looking at the stars' to 'Blowing up aircraft carriers' very quickly.

[@mattmorrow7777]

A big 10" reflector Dobson shows so so much.

[@tubastud06]

I don't think anybody picked up on the 42 is the answer to the ultimate question joke

[@migranthawker2952]

Yes, I did!!! Goodbye and thanks for all the fish 😀

[@kiisseli1337]

Are you serious?

[@reason5591]

Da duh!!! Of course we did. That is what brought us to watch the video.

[@mwnciboo]

Almost everyone did, get over-yourself...Some of us read that before you were born.

[@zedwms]

No mention of LSST? I'm very excited about that telescope, too. It is going to give us a mind-boggling body of information about the whole sky.

[@LaunchPadAstronomy]

I got you ;) kzbin.info/www/bejne/gHqyhaOoetyknrc

[@RossM3838]

Astronomers are very literal when naming telescopes.

[@highpointsights]

I've been hanging out for this and other telescopes in the Atacama desert!! The JWST is amazing but there's a Milli Vanilli component (a duo that in the late 80's was busted for lip sinking in their concerts ( you know inserting data that isn't really there) in infrared because the there's NO color to be had!!

[@rc44004]

Christian will the ELT equil or out perform,the Webb Space Telescope?

[@richardsilva-spokane3436]

Just revisiting this post. QUESTION: Orbiting telescopes are stabilized to be able to take long time-exposures. How can an earthbound scope "lock" long enough to gain a sufficient exposure?

[@LaunchPadAstronomy]

Ground based telescopes are mounted to counter rotate against the sky’s apparent rotation, so it can remain locked on target for as long as it’s above the horizon.

[@starman8225]

awesome 👍

[@seanbaskett5506]

I always wondered whether which takes less time: to design the telescope, or for the committee to choose a cheeky backronym that corresponds to an actual word.

[@csabalakatos4655]

This brilliant!!

[@LaunchPadAstronomy]

Thanks!

[@rodrigoortega4818]

Chile concentrará pronto la mayor capacidad instalada de observación del mundo ... bien por Chie y la astronomía

[@alexanderfoelkel8316]

Yeah sure

[@AirShark95]

Grande Chile!

[@davidsabillon5182]

Good stuff man 👍. Subscribing 📡🛰️🔭👩‍🚀

[@LaunchPadAstronomy]

Glad to have you along for the ride!

[@noelchignell1048]

Next one will have to be called the F.E.T. presumably

[@book3100]

The entire planet has aperture fever. Outstanding!

[@hudaniel6077]

Just curious: How does this ELT differ from the Five-hundred-meter Aperture Spherical radio Telescope in Guizhou, China? Thanks!

[@LaunchPadAstronomy]

The main difference is that FAST is a radio telescope while ELT is optical/near-IR. Since a radio antenna's "mirror" doesn't have to reflect optical light, it can be made much more easily and larger.

[@leslawangelo]

They are very creative with naming

[@lackandre2888]

Is this Teleskop/ 4big mirrors wich linkes singular ? So impresfull for be explain from you . Thanks"s a lot...

[@LaunchPadAstronomy]

Thank you for the comment. There are 798 segments that will join together to form a single large mirror. I apologize if I did not understand your question correctly. Cheers!

[@lackandre2888]

Launch Pad Astronomy Thanks you for answer i'm write was confused in english Swiss man .Wish you best healt and people around you nearly all. Already to learn from themes more please just great! Good heandling and best wishes to from Andy.L. Cheers. GREAT vision .& sucess ..Good By...***

[@jimimorijixopegujiuvoqi3479]

How do they clean that thing of dust

[@M4T1J4P0]

I remember when Mt. Palomar was the largest optical observatory in the world. I feel old now.

[@will2see]

6:17 "... a major step forward in answering the question of are we alone and if life can exist beyond Earth." - like if detecting water and organic molecules says anything about life that is not based on those assumptions...

[@TheKain202]

The thing is, life is just chemistry. And chemistry needs a liquid solvent for reactions to happen. And water happens to be the only one that's liquid in a non-extreme temperature and doesn't happen to be corrosive or else.

[@expeditobertoleti7449]

Como está atualmente, a construção do mesmo?

[@sanrasuzumaki942]

I want one of these in my back yard.

[@joeshmoe7967]

If I ever win the lottery I want to get at least a 1 metre telescope. I have dreamed of this since I got my first 8" telescope in '78

[@cenicenka7895]

very good now it will be easier to find the flag and the apollo modules in the moon, I'm excited when that's going to happen☺️

[@AstronomyLiveChannel]

Thanks for the marvelous video - it's simply mind-blowing. Thank God that amidst all the politics, business and other Earthly activities, human beings are still able to focus on the study of Universe.

[@LaunchPadAstronomy]

Thank you for the kind words. It's nice to know we can do great things when we decide to.

[@kilroy987]

I was wondering if they would make it modular so they could do a phased increase in the size of its reflecting surface.

[@LaunchPadAstronomy]

I'd think the costs would be prohibitive. The mounting, pointing, and adaptive optics systems would all have to be enlarged as would the telescope truss assembly and the enclosure to accommodate future expansions. I guess you'd save a little money on not making all the mirrors at once but I don't think it's enough to justify the overall increase in cost. But that's just a guess on my part.

[@vonsuthoff]

. *How does this ELT Earth telescope compare to the James Webb space telescope?* I understand it's six times stronger, but it's going through our cloudy atmosphere. .

[@deanroddey2881]

Let in answering, but James Webb is primarily oriented towards the infrared. It's for seeing very far out, where the light has been red shifted heavily by the time it gets to us. Earth based telescopes can't really see in that spectrum because there's way too much heat pollution down here.

[@urielpelaezcdmx]

Where will it be located? 🤔

[@hereLiesThisTroper]

The next big telescope should be called, 'Is That A Telescope In Your Pants Or Are You Just Happy To See Me?' or the ISTATIYPOAYJHTSM telescope.

[@gentil77]

inmature

[@reason5591]

Childish rude behavior is so unflattering

[@dvdrwsor]

Only 4 years to go. Thanks neighbor !

[@Trrenik0kb]

Can't wait for the first light of this baby.

[@bartvanderploeg5602]

Would it be able to see a plannets night light, from an advanced civilization? Or could it be confused with volcanic activety

[@Joaopaulo-ms5lm]

Eu quero é saber em que estágio estão as obras do E-elt telescópio no momento???

[@LaunchPadAstronomy]

On the mountain, the access roads appear to be complete and the foundation for the building is under construction. In Italy, the dome design is being finalized and the mirrors are being manufactured in Germany.

[@JAGC1975]

last pictures. facebook.com/ESOAstronomy/photos/a.441878552494/10156778551292495/?type=3&theater

[@claudemartin5907]

I hope they never run out of acronyms.

[@CstriderNNS]

they need to hook the ELT and the VLT up together making a ginormous mirror call it EUA or Extended Ubber Array

[@cookieshousecannabisco6963]

3:19 How do they use those around aircraft? is there a "no fly" zone around where the telescopes operate at night?

[@noahway13]

You can see a blackhead on the pilots.forehead.

[@lmaoroflcopter]

There is likely a notam about it, plus safety instructions regarding use around aircraft.

[@chinatype2bassrocker809]

Can't wait for the "Scary large hugh double big super size smack me around and call me later telescope." That will be the one.

[@enigman44]

It's good to know that when the Oragmi telescope fails (Otherwise known as the James Webb) there will be a back-up ready to step in!

[@GoldSrc_]

Man, can you imagine the resolution of the OWL had it not been cancelled? You could probably be able to resolve the stuff the Apollo astronauts left on the moon with such a large aperture.

[@LaunchPadAstronomy]

OWL was ambitious, though I was surprised to learn it actually wouldn't have resolved the Apollo landing site. I believe you need a 200 meter aperture for that. So, a super OWL? :)

[@srinitaaigaura]

@@LaunchPadAstronomy I thought a 100 m aperture could resolve up to 0.001 arcsec which ought to be just enough to resolve the lunar landers. Guess we need an utterly overwhelmingly large telescope! Do you think a hypothetical 10 km wide aperture can resolve Sagittarius A* on it's own?

[@TheKain202]

@@srinitaaigaura No. Sagittarius A* has an apparent size in the night sky of a marble... lying around on the Moon's surface, as seen from Earth. To have a shot at resolving it visually, you'd need an aperture measured in 1000's of kilometers, out there in space. And that's obviously completely unrealistic, so as it stands - interferometry was the only way.

[@themikeymikechannel2947]

Now try attaching a FLIR CAMERA to this huge telescope and let's see what we ALL have been missing on the moon in plain sight on the light side of the moon!?

[@benjamincasatimcintosh2918]

this makes me very exited

[@stevesmith2553]

I would like to see a telescope that pay's my bills, been out of work along time now

[@LandonRoy-cv9rt]

I'm amazed that we can make mirrors that size will specs that're that tight, truely impressive

[@LaunchPadAstronomy]

+Landon Roy agreed!

[@SeanDS89]

3:49 not gonna lie, these dudes kinda look like Legos 🤣

[@zapfanzapfan]

42 meter mirror would have been cool! Could have been named TOWL = Telescope OverWhelmingly Large :-)

[@LaunchPadAstronomy]

And it would have found the ultimate answer to the ultimate question of Life, the Universe, and Everything!