The History And Future Of The James Webb Space Telescope

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On March 30, 2021, NASA’s James Webb Space Telescope will blast off from the European Space Agency’s European spaceport in Kourou, French Giana on board an Ariane 5 rocket.
It’ll fly to the Sun-Earth L2 Lagrange point, a relatively stable spot in space that keeps the glare from the Sun, Earth, and Moon all in a tiny spot in the sky. Then, it’ll unfurl its tennis court-sized sunshade, fold out its gigantic 6.5-meter mirror, and peer out into the distant cosmos.
Over the course of the next 10 years, this infrared observatory will help astronomers learn about the earliest moments of the Universe, directly observe the atmospheres of planets orbiting other stars, and peer at newly forming stars and planets.
And if you listened to the words I just said with equal parts terror and skepticism, I don’t blame you. James Webb’s path to space has been long and tortuous. And the risks that the mission still faces are very real. Hopefully, the science will be worth it. Hopefully, nothing else goes wrong from now until deployment.
So today, I want to do a deep dive into James Webb. To talk about the history of the mission, why it exists, how the development went, and where it stands today.
I’ll warn you though, the length of this video is going to go way over budget.
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Team: Fraser Cain - @fcain / frasercain@gmail.com
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References:
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9 окт 2024

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Комментарии : 786

@AlaskanBallistics 4 года назад

I'll believe March 2021 when I see it

@Electronic424 4 года назад

The project will be 20 years old upon completion if everything goes right from here... ridiculous. This is one of those cases where the risk heavily outweighs the reward.

@3rdeyeshine94 4 года назад

@frasercain 4 года назад

I don't think it'll be exactly March 2021, but unless something catastrophic happens now, it won't be too long after that.

@AlaskanBallistics 4 года назад

Fraser Cain sometime within the next millennium

@zapfanzapfan 4 года назад

That article that said it ate the budget said it would launch in 2014...

@babyUFO. 4 года назад

Every time you mention JWST it's delayed another month.

@frasercain 4 года назад

But if you say it three times than you summon it.

@ZacLowing 4 года назад

and another dozen million $

@GoofySideUp 4 года назад

So it's like half-life 3 ?

@chinatype2bassrocker809 4 года назад

@@frasercain You know if Betleguese shows up, it's game on!

@ProperLogicalDebate 4 года назад

If Betelgeuse sets off a big light show then keeping things in the dark will become much more complicated. Just what will be the affect on the JWST?

@z-beeblebrox 4 года назад

The longer this takes, the more and more I hope they built a backup because WHEW BOY if that rocket blows up....

@kondjanegongo796 4 года назад

Had the same thought. That would be a monumental FUCK UP

@Markle2k 4 года назад

Luckily, Ariane V is one of the most reliable rockets. It also has the largest fairing available. So it's the only rocket that can launch Webb right now. In the future, we should be able to leverage the lessons learned to make cheaper follow-on telescopes possible.

@nqinadlamini 4 года назад

LOL. Thats what I was also thinking.

@quantumquestthebillionaire1527 4 года назад

Yep why build 1 when you can build 2 at twice the cost......

@MegaHarko 4 года назад

@@quantumquestthebillionaire1527 I doubt it'd double the cost. I bet most of it is R&D.

@hermestrismegistus4311 4 года назад

I’d rather we spend all this money on Webb instead of nuclear weapons

@frasercain 4 года назад

Less military, more science.

@ZacLowing 4 года назад

@@frasercain less all that and more humanity, like help the homeless.

@grimjowjaggerjak 4 года назад

Or just better and bigger ground telescopes

@SETHthegodofchaos 4 года назад

@@ZacLowing Then what do you do when the homeless dont want to get helped? You open up a lot more issues like parenting and education if you want to help people from the beginning of their life.

@theobserver9131 4 года назад

@@ZacLowing Humanity without science equals short, brutal life. Life is still brutal, but with time, science will make it less so.

@supercomputer0448 4 года назад

Can't wait for them to delay the 2045 launch.

@mikecronis 4 года назад

Oh, you mean the 2145 launch?

@supercomputer0448 4 года назад

@@mikecronis sorry I meant the canceling of the program in 22278 after another delay.

@IconOfSin88 4 года назад

My thoughts exactly..

@jOey3578 2 года назад

Lmao 🤦🏻‍♂️

@supercomputer0448 2 года назад

@@jOey3578 I'm glad it's finally launching.

@Unique_Racing 4 года назад

Man I’ll be pissed if it doesn’t work once it’s in space 😂

@TyLockton 4 года назад

Assuming we live long enough to see it launched.

@andrewarmstrong7310 4 года назад

And about 340 million other Americans.

@NaRhala 4 года назад

dont worry baby, it will work

@jimlamson1685 4 года назад

NICE!!! 👍👍👍

@Scynthius137 4 года назад

@@andrewarmstrong7310 That makes it about $30 for each of us.

@woody7652 4 года назад

Absolutely brilliant, Fraser. I've been so excited for JWST for such a long time and the excitement is growing stronger the closer we get. I'm so nervous about it all going well, fingers crossed. Thank you.

@frasercain 4 года назад

Thanks a lot, I'm glad you enjoyed it!

@rJaune 4 года назад

I can't wait till we see something that we had no idea existed before. This is going to be great!

@frasercain 4 года назад

Yeah, observing those early galaxies, seeing the first structures of the Universe come together. It'll be epic.

@Booboobear-eo4es 4 года назад

Like all the return on the taxpayer's money that went into this telescope.

@NickPoeschek 4 года назад

I am nervous about all the things that could go wrong, but then again I thought the idea of landing a car-sized, nuclear powered rover via a bizarre sky crane contraption was pure insanity and that worked amazingly well.

@frasercain 4 года назад

So well they're going to try it again with Mars 2020.

@antonleimbach648 4 года назад

I don’t care how much it costs. Seeing early galaxies is going to be truly amazing.

@Booboobear-eo4es 4 года назад

Of course you don't care how much it costs. The US taxpayer is an infinite source of money. At least that's what Congress and NASA think.

@olivertownson5163 4 года назад

"Fraser Cain, where have I heard that name?"...then I remember listening to Astronomy Cast on my ipod as I waved a sign on weekends almost 10 years ago. Thanks for sparking my interest in astronomy back then and also for making the hours fly by.

@frasercain 4 года назад

Oh great, thanks for subscribing.

@AndreRousseauMtl 4 года назад

Wonderful summary! Thank you for that! Minor typo @ 9:11: Near Infrared minimal temp should be 872 F instead of -828

@frasercain 4 года назад

Hah, yeah.

@themonsterbaby 4 года назад

James Webb will be the first telescope in history to get launched AFTER it's successor. Legendary.

@frasercain 4 года назад

WFIRST is having its own set of delays, so don't worry.

@themonsterbaby 4 года назад

@@frasercain Honestly though, as long as it's successful and actually brings us all the new data it's projected to, then I'm all for it. Once it launches that's it, we can't just fly up there and fix it like we did with Hubble so I completely understand the perfectionist attitude they have. I think the exoplanet atmosphere observations are what I'm most excited about. I can't wait!!

@conorm2524 4 года назад

@@themonsterbaby Yeah, man. I think the chances of alien life forms are getting more real year by year. And not that far away!

@The_SOB_II 4 года назад

I can’t wait for this telescope holy crab boiling biscuit mans

@frasercain 4 года назад

I know, me too.

@jamesgordon1949 4 года назад

I just pray I live long enough to see the results of it...

@frasercain 4 года назад

Hah, me too.

@alwaysdisputin9930 3 года назад

It's effects are going help shape humanity's progress for millenia so..... unless you eat salad you won't

@jamesgordon1949 3 года назад

@@alwaysdisputin9930 …so true but I’ve been waiting for this for literally years..

@bbeen40 4 года назад

The James Webb will ALWAYS be the telescope of the future.

@Electronic424 4 года назад

kind of like fusion will always be 30 years away

@frasercain 4 года назад

Someday it'll launch... someday.

@bbeen40 4 года назад

@big jim truth Ignorance+ crack= This guy!

@fonkenful 4 года назад

big jim truth Please show the class your math, Jim.

@tonivanoortmerssen2655 4 года назад

If all works out good (fingers crossed) we will get to know so much more about space, time and it's beginning. I just hope to live and see it happen, can't wait.

@frasercain 4 года назад

There could be a few more minor delays, but we're getting pretty close to launch now.

@DevAngelo 4 года назад

I really enjoyed watching your deep dive into James Webb. I hope it was good for you too xD

@SuperYtc1 4 года назад

He took a deep dive into James Webb. 🤭

@dunneincrewgear 4 года назад

Uranus Jealous?

@frasercain 4 года назад

Thanks for watching!

@superdupergrover9857 4 года назад

SooOOOooo... how many reaction wheels will it have? I'm thinking four or five dozen should be enough.

@frasercain 4 года назад

I actually talked about that in this video. :-) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mvVgGh7uiEg.html

@NeonVisual 4 года назад

By the time it's built we'll have the launch capacity to make much of the unfurling process just an added complication.

@coreys2686 4 года назад

It's already built. Launch date is 14 months away.

@NeonVisual 4 года назад

@@coreys2686 It's not finished yet, and has had launches consistently pushed back for years.

@MrRandomcommentguy 4 года назад

@@NeonVisual It is finished - it is currently undergoing testing.

@NeonVisual 4 года назад

@@MrRandomcommentguy Yes, like they have been doing for years, and as they keep finding problems they have to go back and redesign parts. The last biggest issue was the unfurling. It was "finished" and when tested it didn't work properly. It won't be finished until it's loaded into the rocket.

@MrRandomcommentguy 4 года назад

@@NeonVisualIt seems we're arguing semantics at this point.

@aresmars2003 4 года назад

@15:30 "This give JWST 15 times more collecting area." But (6.5/2.4)^2=7.33, right?! Where do you get extra factor of 2? Does HST lose more in the center secondary mirror or something?

@dokols 4 года назад

Watching this makes me so nervous. What if one of the million things that could go wrong, goes wrong?

@frasercain 4 года назад

Then the telescope is gone. Best not to think about it.

@classifier_6611 4 года назад

It won't go wrong since it will never launch

@Christamaiztha 4 года назад

I have a question: What exactly is taking so long? Is it the development and testing that it works? Or is it just extremely hard and time consuming to build? The actual question being: if say the rocket blows up or some anomaly occurs where the telescope is unusable. Will it take as long to potentially make a new one? Could you quickly just make a 100% copy and try again? Or would that take another 20 years like the original.

@Round_Slinger 4 года назад

I have much more faith in the rocket then the telescope.

@TyLockton 4 года назад

They assemble it, then give it a shake test to see if anything breaks or falls off, and so far the answer to that is yes. If it blows up on launch or fails to deploy properly, I'm not sure what would happen, it will be to far away for a service mission. There are already other, different projects in the pipe. To replace webb, even if it would be faster and cheaper, would still require a big pile of money from somewhere.

@bbeen40 4 года назад

It took so long because it could. These contractors have every motivation to always be behind schedule and over budget. They are never punished, so why not profit at the expense of the stupid taxpayer and scientific discovery. The James Webb should have been scraped years ago. 50/50 that it never takes a single reading. Everything that is wrong with NASA can be summed up with this money-pit telescope. Dis-band NASA!

@GrouchyHaggis 4 года назад

They are adding a docking ring for future missions...just incase..doesn't speak confident words lol....hopefully it isn't needed.

@Quickshot0 4 года назад

@@bbeen40 Ultimately the issue isn't NASA though, they aren't allowed to make the final calls on that. And that is the issue, because the politicians get a lot of say in how NASA runs itself, they make political decisions on things that should really be engineering decisions. So what really needs to happen is to have NASA be run more independently. Of course some level of oversight is needed, but having their every year exact budget for each project on long running projects, be determined by Congress is just to much.

@bradleyrwerner 4 года назад

I've been paying taxes in America for 24 years and am often disturbed by the war, waste, and fraud I help fund. But things like this keep me hopeful, proud, and patriotic.

@matthiaswalker38 4 года назад

Imagine if your whole military budget was spent on space exploration. Mars would be your 51st state 😊

@matthiaswalker38 4 года назад

Oh and your contribution to humanities future in space is much appreciated by all. I hope our focus on space and the consequent realisation of our fragile place in the universe will somehow bring humanity together and resolve many of our problems and conflicts

@frasercain 4 года назад

Just imagine how much space exploration could be done with a fraction of the military's budget.

@zapfanzapfan 4 года назад

One invasion of Iraq = 100-ish James Webbs...

@rsteeb 2 года назад

And now it's chillin' in an orbit around L2... Looking forward to some awesome imaging!!

@Jellyf0x 4 года назад

Potentially one of the most expensive explosions ever and one I couldn't take any pleasure in.

@frasercain 4 года назад

I can't even imagine it.

@NimbleBard48 4 года назад

This is the first time I see the word 'explosion' mentioned. Every one taking in that manner usually tries not to use it but you know what they have in mind. I don't even want to think about it. I know it will really start 1-2 weeks before launch though.

@NimbleBard48 4 года назад

@Mark Steven That is a very poor excuse for getting excited. The amount of science JWST probably outweights the enjoyment of seeing even the most expensive fireworks.

@esquilax5563 4 года назад

One of the most exciting projects humanity is engaged in right now! Really hope the launch and deployment go smoothly

@frasercain 4 года назад

Same. :-)

@Youtubintheuser 4 года назад

James Webb is the most expensive ground-based telescope I’ve ever seen.

@frasercain 4 года назад

It'll fly. Some day... it'll fly. :-)

@PaulA-zp7hn 3 года назад

🤣

@steveba50 4 года назад

Thanks for this summary and update Fraser ive been looking for this information

@frasercain 4 года назад

Glad you enjoyed it!

@ShaneSemler 4 года назад

JWST is a relic of old aerospace. It's the last of its kind. I hope it's worth it. The next large space telescope will be, at least partially, built in space.

@bradleywasser2047 4 года назад

Shane Semler JWST is the perfect test for a telescope that builds itself.

@frasercain 4 года назад

That's our next episode, stay tuned.

@bradleywasser2047 4 года назад

Shane Semler how? It’s literally going to do part of the assembly once it space. That’s the first part of testing a telescope that constructs itself.

@ivanatreides 4 года назад

I hope nobody mistakes metric and imperial...

@frasercain 4 года назад

Ouch.

@Electronjames 4 года назад

Most likely not gonna happen NASA and other space agencies use the metric system so does the military

@BackToSpace 4 года назад

I've been waiting for this so long I can hardly remember a time when I wasn't waiting for it!

@williambays3534 4 года назад

I find that the James Web Telescope to be both incredible and terrifying at the same time. What we can learn from it is incredible, If something happens during it's blast off or on it's way to the L5 point or it's deployment is terrifying. What if one of the heat shield sheets tear? Computer fault? Hopefully it has three back-up computers. It will be so far away there's no way it could be repaired like Hubble was. And that took years and it was only about 200 miles up.

@frasercain 4 года назад

1000 things can go wrong. And there's only one way it can go right.

@williambays3534 4 года назад

That's comforting. I was thinking there was a million things could go wrong. Just hope there isn't a first case ever heard of an infestation of space roaches.

@Omar-su3ii 4 года назад

I hope this telescope can look deep enough within the earth like planets.

@ProperLogicalDebate 4 года назад

Does the Webb have the ability to refuel as needed and for broken things to be replaced? If not there, can it be slowly if needed moved to Low Earth Orbit to get any work done?

@frasercain 4 года назад

It could theoretically be refueled, but there aren't any plans to do it right now.

@chrisbarlow8605 4 года назад

How will James webb be powered, and is there anyway to possibly extend its operational time?

@frasercain 4 года назад

It's powered by its solar panels for electricity. But the thing that will really definite its lifetime is the amount of fuel it has on board to maintain its position at the L2 point. It'll have 10 years, 17 at the most before it can't hold position any more and it drifts away. It does have a refueling port, so who knows if it'll happen?

@zapfanzapfan 4 года назад

If it takes as long to build the refueling space craft they better get started on it now :-)

@terryburge6763 4 года назад

If the James web telescope is completed and in French Guyana then why isn't it being mounted on an Arian 5 rocket and launched? Why should it take another year and a half to send it into Space? Terry

@williambays3534 4 года назад

I have two questions about the James Web Telescope. #1 You spoke of a Helium pump on it to help cool it. Is it an actual pump like in a A/C unit using Helium or is it just some liquid Helium in a large tank, that is allowed to just slowly boil away and take the heat with it? #2 Do you know if one of the first pictures it takes is going to be a deep field long exposure shot like Hubble took? ( I hope, I hope, I hope )

@frasercain 4 года назад

It's like a refrigerator, so in theory, it won't expend that into space unless there's a leak. As I mentioned in the video, there'll be a JWST Deep Field, but it won't be one of the first things it does.

@NoPulseForRussians 4 года назад

So eventually the universe will expand into the radio wavelength spectrum? So we could essentially listen for the sound of the big bang itself one-day? That would be awesome. Prolly have to buy it off of iTunes or something at that time 😆

@frasercain 4 года назад

Yup, if you wait long enough, it'll be the cosmic radio background radiation. And then it'll just disappear.

@ironqueen_osrs 4 года назад

Because of the sunshield the JWST can still only see half (probably a bit more) of the sky. So doesn't that mean we should have built it on the moon so it could be cheaper and maybe even fixable if a problem would occur like with the HST? What am I missing?

@poruatokin 4 года назад

A lot. If it were at the south pole of the moon it would only ever be able to see half the sky. Where it is situated, throughout a year it will be able to view the whole sky.

@frasercain 4 года назад

Over the course of the year, it'll get a view to every part of the sky.

@SinaFarhat 4 года назад

Based on the time it took to build it, would it be possible to use all the data and knowledge we have and build another copy of james Webb using the original estimated budget?

@frasercain 4 года назад

There would be some cost savings, but it would still be expensive. If the launch fails, I don't think we'll see a replacement.

@SinaFarhat 4 года назад

@@frasercain I would like to think that the security measures taken to get a successful launch is as detailed, checked and rechecked equally to the work done to test james Webb to the point that everyone is convinced that it is ready to be sent to space!

@JohnJohansen2 4 года назад

I won't be holding my breath but, I sure will look forward for JWST to return it's first observational data.

@frasercain 4 года назад

It should be incredible. I can't help it, I'm holding my breath.

@johnnymatias3027 3 года назад

Can't wait for first light. Desperately hoping it's in 2021.

@RafaelDominiquini 4 года назад

I have a question: In the event of JWST being destroyed at launch, would building another telescope be cheaper and faster due to the knowledge already gained?

@Jameson1776 4 года назад

Should be cheaper a big part of the cost of r&d. Sadly if it’s destroyed knowing politicians and doubt they would be given funding for another one.

@MarkSeibold 4 года назад

This was a beautifully assembled video, to report the progress, and history thus far of the James Webb Space Telescope, and we should give great thanks to the producer of it. As an amateur semi-professional astronomer, whose artwork in photography has been featured in NASA websites, I don't know if I can answer the question that some may have about the rocket launch possibly failing, or the telescope developing problems in space, but I can't help recalling a TV commercial back in the late 60s or was it the early 1970s, as it showed a group of lab engineers in white coats with clipboards, as they were examining a Hush Puppy shoe. As they deliberated and conversed, one finally says - I don't know if we can make it better, but we can make it cheaper! Then they all heartedly laughed. These lab engineers were all Japanese. Remember the days in America when so many products were showing up as made in Japan? We don't see products from Japan anymore. Except for maybe a few beautiful Citizen, Seiko and Pulsar watches, a few car manufacturers, and Camera manufacturers that now farm out their work to Vietnam, China, Taiwan, and Indonesia. So perhaps the Chinese will be the next ones to fastly build a cheaper Space Telescope that could match the James Webb. Perhaps we should ask our Chinese friends to start working on a cheaper fast copy of the JWST, just in case.

@frasercain 4 года назад

It would be cheaper and faster, but there are other priorities, so I'm not sure it would be a priority.

@zhollett 4 года назад

Good Morning Fraser. I'm hoping you can help me understand something. Regarding the "bigger telescopes look further back in time" theme. I understand that as we look at distant galaxies, we see them as they were however many millions/billions of years ago due to the light speed constant. 100% Ok with that. The question I have is this: Is there a fundamental "time" which we simply cannot look further back in "time" because that light has already passed beyond where we are in space? I imagine light as an expanding bubble from its origin. If something happened in the first million years (or whatever that timeline is) of the universe, would that light not have already passed by us so we can't see what happened? Thanks.

@frasercain 4 года назад

Yes, the farthest you can look is the cosmic microwave background radiation. This is essentially the birth of the Universe. You can't look any farther back beyond the beginning. :-)

@RafaelDominiquini 4 года назад

Another question: Concerning visible light spectrum, with current advances in ground-based telescopes (adaptive optics, etc); would a Hubble-like space telescope (preferably larger) make sense?

@Mosern1977 4 года назад

I don't think so for visible spectrum, as the earths atmosphere doesn't block them. And ground based telescopes have quite a few advantages. Of course when we get into the age of self-assembling space telescopes with 1000 meter mirrors, then space is the only way to go.

@RafaelDominiquini 4 года назад

@@Mosern1977 But Hubble still give us better and clean images than any Earth telescope, no?

@massimookissed1023 4 года назад

@@RafaelDominiquini , modern ground-based 'scopes can give images about as good as Hubble, and are easier to maintain. Hubble still has the advantage of being able to see in certain directions without any interruptions such as daylight.

@frasercain 4 года назад

Yes, that's the plan for LUVOIR. It'll be like Hubble, but measure 15+ meters across.

@galonakuaakua2498 4 года назад

There's also the technological achievement between when telescope was built until now. There's some outdated technology when it was initial build. There's interesting reddit post about this.

@frasercain 4 года назад

Oh cool, do you have a link?

@thomasfholland 4 года назад

It all sounds great - in theory. I wonder what the odds are that it will all work.

@frasercain 4 года назад

We won't know until they actually try.

@Adam-sk1vv 4 года назад

Once launched, how long will it take before we start to receive images back from Webb?

@thebigpicture2032 4 года назад

So excited for jwst and just a little nervous. Thanks for this update!

@frasercain 4 года назад

I know the feeling. :-)

@chriso3780 4 года назад

We are $20+ TRILLION in debt. . We spend 1-2 T a year on all sorts of things. . I think $10B is not to much to ask for the advancement in astronomy. . 1 year 5 months. . Great video:)

@frasercain 4 года назад

Thanks! Can you imagine what a fraction of military spending would do for space exploration?

@chriso3780 4 года назад

@@frasercain I think about it once in a while but it depresses me. .Couldve doubled NASAs budget and we would be looking to lauch to Mars from the moon easily by now. . Keep up the great work FC!!

@NimbleBard48 4 года назад

Questions. Can you be sure you removed all the dust grains from the mirrors of JWST? What if you haven't removed all of them pre-launch? What happens if you discover it while the JWST is already deployed in space? And have these things happened in the past?

@massimookissed1023 4 года назад

Then we launch Consuela with some lemon Pledge.

@frasercain 4 года назад

Dust grains would be an annoyance, but they wouldn't ruin the telescope.

@XIIchiron78 4 года назад

Given the effort and expense put into JWST, could we take advantage of what we've learned to make more telescopes with the same design for much cheaper per? Would that even be worthwhile if we could? Or is JWST able to fulfill the goals by itself, making more redundant? Is there a back up plan if the unthinkable happens?

@frasercain 4 года назад

There isn't a backup, this is a one-off. In theory, future space telescopes could take advantage of the lessons learned by building Webb, and if they absolutely had to build a copy, they could do it for less. But there are no plans to do so.

@AvyScottandFlower 4 года назад

1. Fabricate LOTS and LOTS of GIANT, assembling mirrors here on Earth 2. Launch them to LEO on a Starship, ala Starlink 3. Assemble them on a spacewalk near ISS, and put a GIGANTIC barrel with liquid coolant and/or a shield behind them 4. Take the assembly to L2 using a lightsail or ion engines, Tesla batteries and solar tiles. Presto. INCREDIBLE telescope, for basically the price of the mirrors. Starscope. Get on it, Elon!

@frasercain 4 года назад

That's our very next episode, so stay tuned.

@rmarconi5549 4 года назад

The "planned launch" is now 14 years after the initial planned launch for 2007, with a cost of $9.66 billion (as of 2018)...more than 19x higher than the original budget. It took less time AND money to build the LHC! Way to go NASA!

@rickh2708 4 года назад

maybe you can give them tips on how to speed it up,,,,, cheaper?

@rmarconi5549 4 года назад

@@rickh2708 Sure thing. End the blank check funding and cut out the government funded bureaucracy known as NASA. NASA isn't building it, Northrop Grumman is. Northrop Grumman is the only one with any risk in the project, as they have to repay the funds if it doesn't work. NASA has no risk, yet NASA takes nearly half of the funds and delays the project while their administrators mull over every construction decision then request more money when deadlines aren't met. The contract should've been awarded directly to Northrop Grumman with a contingency that deadlines be met.

@ziiiic 4 года назад

@@rickh2708 Yep give it to ISRO

@houstonpromotion 4 года назад

Na that ain’t why it’s so expensive , i’ll tell you why it’s so expensive because you got a guy installing one little switch and he’s getting paid 100k a year then you have another guy supervising him getting paid 150k

@PaulMnMSmith 4 года назад

How long will it take for jwst to take photos? I mean the time it actually takes to collect enough protons to create an image. Will a UDF photograph take the same amount of time as HST?

@frasercain 4 года назад

As I said in the video, for an ultra-deep field, they'll be doing 100 hours per filter.

@basknation 4 года назад

Terrific video. Covers it all.

@frasercain 4 года назад

Thanks a lot!

@Itiswell14 4 года назад

All I can say is, IT BETTER WORK! The long wait and bloated budget will have millions of folks super mad if it doesn't perform! Been waiting and waiting and trying not to get to mad and disappointed after each delay!

@frasercain 4 года назад

Yes, let's hope it works.

@chadcrist4816 4 года назад

Oh man. This telescope is so rad! Imagine if something happened to the rocket & Webb was destroyed... 😭

@frasercain 4 года назад

I can't...

@Joenerfhearder 4 года назад

They should build at least one more Hubble launch and attach three Hubble or other optical telescopes to a frame that is a triangle. If you did that you could use the same frame to attach more observatory equipment. They could use the inside as a radio telescope. Make it a miles wide interferometer. Add a space station for docking and hotels...

@Nienormalny 4 года назад

Great vid, as always.

@frasercain 4 года назад

Thanks!

@coolkidbmx6851 4 года назад

Do you think if they waited until today that they could have made this with better/ cheaper technology? I feel that in 10 years alot has changed in technology....

@frasercain 4 года назад

Definitely, but hindsight is always 20/20. The biggest difference would be the capabilities of the new launch vehicles like Falcon Heavy and Starship.

@coreys2686 4 года назад

Does it make sense to build another JWST? Or do Northrop Grumman's cost overruns make it unlikely? Can the mirror point independently from the sunshade? If, so how much?

@frasercain 4 года назад

Yes, the mirror can turn around and gimbal on its own. If it fails, I doubt they'd build another. :-(

@aldenconsolver3428 4 года назад

That's was good Mr. Caine. I hope whoever your working for has offered you a contract to do this each year until the project is dropped.

4 года назад

Amazing the amount of information in this video, thank you so much!! I'll see this one take off in person.

@frasercain 4 года назад

Thanks a lot, I'm glad you enjoyed it.

@Ozzywozzy 4 года назад

That be a dream of mine to see that beautiful telescope launch. I work hardly enough to fly around the southwest, let alone going to ESA launching. Isn't there a contest I can try my hand at to win a ticket? It doesn't have to be a golden ticket....

@frasercain 4 года назад

If you can make your way down to French Guiana you'd be able to watch it launch. I'm sure there are some ways tourists can visit the area.

@rickh2708 4 года назад

Truly a life changing event!! I look forward to what we will learn about the origin of the universe! Lets go easy on these brilliant people putting all this together!! I mean can you do it faster?

@grimjowjaggerjak 4 года назад

Can't wait for it to be delayed again

@Pacer... 4 года назад

Can't wait for the James webb to be operational, we're entering a new and exciting era in science. Can it find a second genesis, like vegitation on another planet? Really looking forward to it.

@massimookissed1023 4 года назад

I suspect it will find things that we can't definitively say are life or not. >:s

@frasercain 4 года назад

It'll be able to make observations that could confirm biosignatures, like life on another planet.

@NetTubeUser 4 года назад

Excellent video, you did an amazing job! It's really informative and interesting. Thank you very much for that, Fraser Cain!

@samcerulean1412 4 года назад

If it’s ready to launch why is it taking until 2021 to launch?

@bedouinknight9437 4 года назад

Can’t wait for 2021

@frasercain 4 года назад

Let's hope there are no more delays.

@jamesboaz4787 4 года назад

I'm wondering if, like Hubble, could we push JWST past it's expected life? And could it be possible to SEE in RADIO or even beyond that?

@frasercain 4 года назад

No, JWST is still limited by the wavelengths that it's sensitive to, it can't see radio. But it could have its mission extended.

@ArcherWarhound 4 года назад

Considering the speed at which rocket/space industry development is now happening and launch prices are now dropping in the US any chance that a mechanism for extending the life of JWST via resupply has been built into it so we can get more use out of this enormously expensive beast?

@ArcherWarhound 4 года назад

Just saw you answered this question in the question vid. So glad to hear that resupply is possible!

@frasercain 4 года назад

There are no plans, but it should be possible.

@jamesaltonfilms 4 года назад

What telescopes did you mention as after WEBB around 19:55? Sounds like "Louviore" and "Haddox" but my spelling is so off that Google didn't know what I was talking about... help please!

@Drakcap 4 года назад

Close! It's LUVOIR and HabEx

@frasercain 4 года назад

Here's a video we made all about them: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-7x0RpGa_IXA.html

@jamesaltonfilms 4 года назад

@@Drakcap Thank you so much! I really appreciate it!

@saquist 4 года назад

@Fraser can the James Web see into the Zone of Avoidance on the other side of galaxy?

@frasercain 4 года назад

Like Spitzer and Herschel, it's an infrared observatory so it's the perfect tool to look through the gas and dust at the center of the Milky Way and see what's on the other side. But the galaxy clusters on the other side of the galaxy have been very well mapped out at this point.

@alanroberts7916 4 года назад

If the J webb relies on infrared light why does it need to be in space?.. Like the vla in new mexico it can be constructed and used on the ground. Cant it see through dust and weather?

@1000dots 4 года назад

Hi Fraser, thanks for being such a good sport, I know I ask a lot of stupid questions. Today's stupid question: Can an object in space hold a static electric charge that would be dangerous to touch? Could landing on some bodies involve getting hit by a huge static discharge on contact?

@frasercain 4 года назад

Yes, there are risks with static electricity. Here's an article that talks about it: www.nasa.gov/offices/nesc/articles/understanding-the-potential-dangers-of-spacecraft-charging

@phoule76 4 года назад

Could it be true that James Webb will see galaxies so far away in time and space that Hubble has already seen what those objects will have become, closer to us in time and space? In other words, could we see the same objects multiple times, throughout their history? And would we even know it?

@frasercain 4 года назад

No, James Webb will still see the same things that Hubble sees, it's just that it'll see things which are too faint for Hubble to see.

@joewright9879 4 года назад

Great video. Thank you for the information. I will share this with my sons.

@dstonks333 4 года назад

Question- when James Webb telescope runs out of fuel, could nasa send a remote control vehicle to refuel? Or is there no way of doing that?

@frasercain 4 года назад

There are no plans to do it, but it does have a docking ring and a fuel port. You know, in case someone wants to resupply it.

@ellsworth1956 4 года назад

@@frasercain Well that is a little foresight. They can't get enough of Hubble and it is on its last legs. It was only supposed to last 15 years and now it's pushing 30!

@anotherarmchairhistorian2831 4 года назад

Was originally supposed to launch in 2014. I'll believe it when I see it.

@frasercain 4 года назад

Even earlier than that. But yeah, now all we can do is wait and see if it blasts off.

@JamesLewis 4 года назад

Question: Why does your "Near Infrared" range extend to 5200K, or beyond the 2700k considered normal for an incandescent lightbulb? Are these somehow measured differently?

@dilipsharan8699 4 года назад

Fingers crossed for a successful launch and deployment in just over 16 months

@frasercain 4 года назад

Let's hope that date doesn't change. :-)

@raymondheath7668 4 года назад

Web has been such a disappointment to me. It seems so fragile and there could be a myriad of problems in transpertation, much less launching

@jerry3790 4 года назад

That’s why it’s taken so long. Because they’re trying to make it less fragile.

@z-beeblebrox 4 года назад

I don't get how something that isn't up and running yet can be a disappointment. That's like saying now that 2021 is such a disappointing year, it doesn't make any sense.

@bbeen40 4 года назад

@@jerry3790 The latest delay was because the idiots dropped a bunch of bolts into the telescope, no joke.

@Markle2k 4 года назад

That isn't correct. They put the bolts in looser than spec out of caution and they vibrated loose in the vibration testing.

@bbeen40 4 года назад

@@Markle2k Out of spec, for caution... Fucking idiots. Spec is spec for a reason!!

@AN-it8dp 4 года назад

The JE micro shutter array is going to make for some interesting observations.

@frasercain 4 года назад

I can't wait for it to launch.

@VegetaAFH 4 года назад

Hey Fraser, will James Webb be use to view the blackholes that were recently viewed?

@frasercain 4 года назад

It'll probably make its own observations of SgrA*, but it can't be part of the Event Horizon Telescope because it's an infrared scope, not a radio telescope.

@VegetaAFH 4 года назад

Fraser Cain thank you for the clarification.

@irrationalpie3143 4 года назад

The best video on JWST, and I've seen a few

@Drakcap 4 года назад

Thanks! Glad you enjoyed it!

@frasercain 4 года назад

Thanks!

@irrationalpie3143 4 года назад

I've become a Patreon supporter of the channel thanks to this video. I've been watching the Universe Today channel for some time, but this video finally made me decide that I'm getting extra value from this channel, and worth supporting more.

@Drakcap 4 года назад

@@irrationalpie3143 Aw man that's awesome! Thank you so much!

@archnitedesigns3575 4 года назад

Thanks for the update.

@frasercain 4 года назад

Thanks for watching, and thanks for sponsoring this one. :-)

@dMarvis 3 года назад

Hey Fraser, Does the JWST or other telescopes have a limit to observing high-energy targets? If it's looking at gamma-ray bursts, would it ever be a threat to the sensor within? Or am I exaggerating something non factor? Thanks!

@NicleT 4 года назад

So the day it will launch, I’ll know it will be march 2021, isn’t?

@frasercain 4 года назад

That's the current date, but it could drift away again.

@NicleT 4 года назад

Fraser Cain I’ll stay tuned. ;)

@cargyle6003 4 года назад

I understand why the telescope needs to be cold, but what I don't understand is what is causing the heat it needs to get rid of? Is it simply heat produced by the telescope itself, or is it heat from the sun? I would think that space is cold enough on its own to eliminate the need for cooling.

@frasercain 4 года назад

It's the heat from the Sun.

@joshwatson1576 4 года назад

I have a question. How do they know they will be able to see the very first stars and galaxies? I thought there was no known observable edge to the universe that we can see.

@Quickshot0 4 года назад

It's because light takes time to travel. So because the universe has a beginning in time, if you can but peer far enough, you will be able to see the oldest light arriving only just now from the earliest times. You just need you know, a big telescope to be able to see the fairly faint light.

@joshwatson1576 4 года назад

@@Quickshot0 Thanks for responding to me. I appreciate you taking the time to do that. I cannot wait to see what we discover with the Webb.

@Quickshot0 4 года назад

@@joshwatson1576 Hopefully many very interesting things.

@frasercain 4 года назад

The end of the Universe is when you're looking as far back in time as you can, about 14 billion years ago. That's when the Big Bang happened, and if you tried to look any farther, you'd be trying to see before the beginning of the Universe.

@joshwatson1576 4 года назад

@@frasercain Thanks for the explanation Fraser! I appreciate your response 👍 I hope we are able to discover some amazing things that we have never seen or thought of was possible. I'm really hoping we find life. I'm a big fan and keep up the great work

@tuberhead 4 года назад

Thank you for not saying "tennis court".

@poznic 4 года назад

I feel huge pressure for success of this project. I can't imagine how those who are involved in whole process feels. There are huge expectations, a lot of money is spend, lots of delays and you have just one shot, risky one.

@frasercain 4 года назад

Yeah, so much pressure.

@putt7515 4 года назад

Cant wait for the 2038 launch

@pansepot1490 4 года назад

“The Northrop Grumman B-2 Spirit is a US Air Force (USAF) heavy-penetration stealth bomber launched in 1989. The aircraft can infiltrate complex and dense air-defence shields, while it is capable of all-altitude attack operations up to 50,000ft. B-2’s original unit cost was $737m, making it the most expensive aircraft ever built. However, due to retrofitting and adjustments in 1997, *its overall cost now stands at $2.1bn* . It costs $135,000/hr to operate.” Just saying...

@chuckkimber2773 4 года назад

Northrop Grumman has their maintenance vehicles (MEV) they're now flying. I'm surprised to have heard so little about it, but I wonder if it could be leveraged if JWST has issues like Hubble did. Unlike Hubble there are no service vehicles or crews available for it otherwise.

@frasercain 4 года назад

There's one benefit for sure. There are more ways available to repair and service spacecraft.

@Capfka 4 года назад

Very interesting and well-presented, Fraser. I've been following the faltering progress of the JWST for years now, wondering when it would get cancelled because of cost. One thing I didn't hear/see in your presentation was how it has been funded. Most reports just say how much it costs without further clarification. Is it purely a US enterprise, or have other agencies such as the ESA been contributing to it?

@frasercain 4 года назад

It's about 15% ESA and some additional money from Canada.

@ziebol1 4 года назад

Great material, Fraser! IMHO- things break, no matter how modern and hi tec. Without the possibility of service missions, I'm afraid that JWST will be a bust

@frasercain 4 года назад

Yup, it's a huge risk.