Why It Took a Decade to Launch The James Webb Space Telescope | Compilation
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- Опубликовано: 11 сен 2024
- The James Webb Space Telescope has launched! But it was a very long road to get to this point, and we’ve been following the progress for a decade!
Hosted By: Hank Green
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The JWST took so long to be ready that its initial planned launch in 2007 was when I was just starting middle school. When Scishow first talked about it, I was a freshman in high school. When it finally launched, I had finished college and had become a professional chemist. It took a _long_ time to get here, but I'm glad we finally have!
The JWST took so long to prepare that i literally went from kindergarten to my first year of college (2007-2021)
It's mindblowing.
And there are government employees who literally spend their entire lives working on one project, that might still get rejected or fail. Nutty
Damn
@@Joe_Potts In an effort to support science itself, i love to recommend
randomly. I give scientific watch-suggest aka recommendations.
Want some?
@@loturzelrestaurant heck yea! :>
Amazing demonstration of how Green-Screen technology has improved over the years! Oh, and some cool stuff about that spacey telescope too … 😉
Yes indeed, so mind blowing
LOL, I bet you have not even heard of the sebatier reaction, nor know where any 'green' technology comes from, the energy and resources needed to produce it, or the costs driven up by government.
@Mars Wha?! Somebody misunderstood me on the internet?! MOM!! 😆😇😆
Hank Green appears on a green screen? What is this!?!?
@@walperstyle r/whoooooooosh
2012 was the year I started my life on my own and I started it watching Scishow and Crashcourse when I got off of work from McDonalds. It's crazy to think about how far I've come since then and how much this channel has grown. Thank you for those memories
I'm recovering from a migraine attack at the moment and am so glad that scishow looks the way it does today. Those 1,2,3 graphics from the ye ol days huuurrrrttt 😂
3:13 I love when tech is thought out so thoroughly there is no better way even hundreds of years later.
True. Of course, it's only the main principle of the tech that's remain the same. The execution of it tho (additional tech attached to it, its exact shape and proprtions, the precision of building the parts, etc.) has improved over the years.
I’m still trying to think of an example. Except tooth enamel, but that’s ancient.
@@summer-west Personally, I like the way the Romans started a cool thing called "building roads in a grid," that turned out pretty useful.
E.g. wheel
@@summer-west power! Other than solar and wind kind of, create power by using water to spin a turbine. Nothing beats it. So efficient. Same idea used for 100's of years or more
FINALLY!!😉 And fingers crossed that it reaches L2 and maintains a stable orbit around it.
It won't orbit "around" L2, it'll orbit around the sun following the earth. It's basically a spot where the gravity from the sun and the earth balance out, so it'll stay roughly the same distance.
This will make it so it can keep both the sun and the earth behind its sun shield, as if you had either in front of the telescope, it would completely saturate the image, so you couldn't see anything.
Not trying to nitpick, just wanted to share knowledge!
Edit: Completely incorrect. My bad.
@@christiangibson1867 Yes it does follow behind the Earth around the Sun, but JWST will also maintain a small orbit around the L2 point so what he's saying is not wrong.
Here's a video on that subject ruclips.net/video/524fcGyki5c/видео.html
And than…boummm get hit by some debris lol
Tomorrow!
@@jdavidblais probably!
The most amazing thing in this video is that Hank Green didn't age over the last decade. Something Science will have to explain.
Amazing just how many pieces and equipment, design and personnel, just the sheer amount of work. Congrats to everyone involved!
You mean personnel?
150000 people, 40 million work hours, 19 countries, 28 years and $10B...
So happy to see the incomparable Caitlin Hofmeister in this retrospective! As an elderly amateur science and astronomy nerd, I hope that I live long enough to marvel at many discoveries that are ahead for the JWST.
Some things are worth the wait.
I remember geeking out about JWST with friends back in 2015 and I swear I thought it'd never launch and that it was just a mythical telescope. Love your content, Hank Green! I finally became inspired to start my own channel and geek out about space on RUclips and I just posted a video on the JWST. It is so powerful that it could see a bee on the moon from its current position, or city lights on Earth at night if it were positioned from the edge of the solar system! I can't wait to see what it discovers!
As an engineer/space nerd that now runs a cnc machine shop, I as so curious how much each of those beryllium mirrors cost to machine as its a expensive material by its self and also super expensive to machine with the addition of what I must assume to be nanometer tolerances across the whole part.... incredible!
Now lets hope nothing cold welds together
@@Shad0wBoxxer as far ad I know cold welding of parts in space is an old problem that has been solved. Back in my schooling days an engineer at JPL taught my one of my material science labs and he told me all the engineers over at jpl do a cold welding review of their design to make sure it cannot happen (no similar uncoated metals that need to slide or rotate can come into contact , etc)
You can read more about the manufacturing of the beryllium body if you look up 'Mitsui Seiki JWST'. The Machining is not nanometers but incredibly tight volumetric tolerance (small tolerance relative to component dimensions). However, the gold plating and subsequent polishing is more stringent. If you want nanometer tolerances from manufactured components, you want to look up 'Diffraction Grating'. Diffraction gratings make it possible to determine what element compositions are out there so far away.
Few info about telescopes.
Galileo was the first to use a telescope to observed the sky. He sent several exemplars to several important persons hoping for support. One of these was the ruler of Cologne, who accepted it, but, not knowing exactly what to do with it, he gave it to Kepler. Kepler was really interested, studied it and improved it (In Galileo's telescope the image was upwards, in Kepler was downward but with greater magnify effect).
The firts reflective telescope was designed not by Newton, but by Greogory in 1663 (5 years earlier), but he was a theoretician and bad with practical stuff, so he didn't built it. But his designed is still used (Magellan telescopes and GMT at Las Campanas Observatory, LBT and VATT).
I just noticed it's been quite a while since we've seen Caitlyn. Hope she's doing well.
I miss Caitlyn and her enthusiasm.
God speed Webb. Make history!
Great compilation. A lot of the current Webb reporting is interesting but repetitive so it's good to watch older video clips to get some perspective.
19:50 - IDK, if something did need servicing we could use robots... Fun fact the telescope has a refueling port for an extended mission.
How marvelously creative humans can be. As a species, with enough money, we dream things into existence. Einstein did this when he could not see clearly outside of our wavy atmosphere. And for taking a very well informed guess, he got an astonishing amount correct. More astonishing still will be when JWST at last opens our eyes to reality and we no longer have to dream it up
I'm just saying if we're ever going to find aliens all at once it'll be when we suddenly start scanning all the wavelengths of light that are created from body temperature
What I like most is how much the production quality of this channel has improved over the last decade
The science and engineering involved in this project is beyond comprehension, but the fact that all the separate disciplines had to work and mesh together is even more incredible. The more I read about the JWST the more entranced I become. I find myself wondering "how did they think or that?" or "how did they get that to work". One of your "save" videos for sure and thanks for doing it. I'm sure you will be keeping us updated on all the super stuff that happens with it.
Past Hank and current Hank look surprisingly the same 🤯
I worked on NGST/JWST from 1999 to 2004 - it's taken a while but it's all been worth it...
I can't wait to see jwst images
I can’t wait to read the moaning about NASA when folks complain that false colors were added to the images. Remember there are no colors in Infra Red.
The best images will be from the near IR camera. It has the highest resolution and does seen red and orange.
And it launched on my 37th birthday. Best birthday present after watching for decades
Been waiting a long time for this... I'm pretty sure the first mention I heard of it was in a book catalog I read in *elementary school.* I've been out of *high school* for over ten years! So I was disappointed by both estimated launch dates when they didn't happen.
10 billions sounds like a bargain nowadays ngl
"At least we can also start looking for signs of aliens poisoning their planet!"
"And hopefully, we'll find ALL of that, and more!"
Damn Hank, savage, you hatin' aliens or something?
I went to Clyde w tombough school so our schools were always into any space stuff! So I have been following this since the beginning and it has been a drag waiting for so long. Now I have where's webb loaded and counting down
Simply can't wait for those first images!
It was only 10 years ago but it looks like it was forever ago for Sci Show.
Thank you for your awesome video 🌎
This was a fascinating journey into the incredible and long-awaited technological advancements with green screens and white balance by SciShow’s producers!
Also, something about a tube with some lenses.
Finally New Jersey’s bedazzling contributes something to society
Oh god the diagonal wipes, I feel like I'm watching something by Lucas.
How do they make sure the gold on the mirrors isn’t damaged by space debris?
🤞 😆
I love the way Hank always says we, like he's talking about his favorite sportsball team
Thank you for all you've done for science literacy, Hank. You and the SciShow crew are excellent teachers.
Webb is our hope.
To find the soup,
Of the universe
Leading to a multiverse,
Of the astronomy,
And a way for astronomers.
A hope
In the Webb.
Go and find
The distant land
Of aliens
And minions.
Come back home
With a soup
Of hope.
Temperatures aren’t hot or cold, they are high or low.
Stuff is hot, cold, or something in between.
After all the delays, I had some serious doubts. Amazing group of people did an amazing job.
I have been excited about this telescope since I was a kid and I'm just so happy that it is finally in space
"In contrast to Spitzer, scientists are sending Webb way farther..." at 1:50 - a small correction about this, Spitzer has gone way farther that Webb will go during its operational lifetime. Spitzer continuously drifted away from the Earth in an Earth-trailing solar orbit and was >1AU away by the time its mission ended.
Crazy I remember watching these when they aired. So happy jwst is nearly ready.
I've been following the JWST since it was first talked about, so many decades ago. I'm glad I'll live to see it produce data for us to use!
Thanks, SciShow. You've been a bright spot in my otherwise very dark world. You've no idea what that means to me. ❤
Congratulations to all of Earth
✨🌎🌍🌏✨
What becomes of retired space based telescopes? Are they still usable and/or accessable by the public?
They plunge back into the atmosphere.
How about a follow-up, "James Web: From launch to full deployment" :)
yes, great, but what about the deployment process, the video kind of promess that as central topic. how is this process going, what reports from nasa do we have etc...
Deployment went well. It's been all over the news.
Early bird gets the facts
Only enough gold for 10 wedding rings? Damn. That is tiny. Although the good thing is it means Sauron won't be forging the One Ring as well as the nine for mortal men.
Another amazing and successful adventure in space instrument design and deployment
I'm still curious what caused the delay from March to December
I don't know what caused that particular delay, but they skipped the 2012 delay due to ripping the sun shield in one of its test deployments and having to go back to the drawing board with its design.
There were concerns about how quickly the air inside the Arianne’s fairing would vent during launch. The concern was if it was violent it might damage the sun shield.
Additional data was collected from two launchs in 2021.
I imagine COVID had an impact too.
OMG young Hank Green is adorable😍
6:16 - The most sophisticated mirror in the known* universe
0:39 That hair though 😁
James Webb Space Telescope was the Telescope of the Future, and it always was. Until now.
So... when can we have Fusion? If JWST is up there, I expect fusion to be solved soon!
2:34: Interestingly, the portrait on the left was recently discovered (circa. August 2021) to likely *not* be of Johannes Kepler. In fact, the attribution of the portrait to Kepler only dates as far back in the public record to February 3, 2007, when it was added as the main picture to his Wikipedia page.
Classic internet
20.46 you look amazing. I thought this was an old clip. Did you use a time machine? I recently pushed off 30kg and its strange as iv heard people say i look younger and the words skinny was used a lot too but younger isnt what one usually anticipates when losing weight. If this is an old clip pls forgive me. I meant no harm. I was so blown away i had to watch the end a second time to hear the facts as i was so surprised and then again without looking at the screen to makes shore i understood fully everything she said as this topic the james web is very special to me and i was not expecting my mind to switch off like that. i was born 1988 so the hubble and the james web have been in my life since the start and thank you to government funded tv that made docos free. i love documentaries and space ones take the cake no wait for the entertainment factor i liked natural disaster movies. It was fascinating how much power the earth had. Might even be safe to say natural disaster movies were my gate way to space docos because of the sheer scale of things in space that make natural disasters look like temper tantrums from a toddler.
I remember back in the day we used to spray the inside of payload fairings with freon to clean them.
We probably opened up the hole in the ozone every time we cleaned a Delta II rocket payload fairing.
As a hobby of mine, i give scientific watch-suggest aka recommendations.
Want some?
soo given the webb could yield more precise information regarding a planets or moons atmosphere contents ... yery much looking forward to some insight into our solar system (looking at you titan, europa and enceladus)
Can't wait for the l2
I remember the Webb being mentioned on an episode of "The West Wing" in '05
Thank you for this compilation about the JWST.
Oh Hank, you were such handsome young lad.
I love hank and the other host!
Only the L2 point insertion is left to be done and after that, hope we'll find aliens :D
@@viveksanatani108 yes they diiiiid!!! Can’t wait to see aliens!!!
now we have 1000 videos on this topic! tnx!
Was there some strings attached, like say, some "spider strings?" Haha
Can’t believe I’ve been watching scishow for 10 years; almost half my life 😂
Wow thatz way back I remember that old orange room
Wow, it took even longer than both Duke Nukem Forever AND Cyberpunk 2077 :O
Can't wait to see the first images ^_^
"The only metal that actually looks reddish to the human eye" is a bit of a confusing statement. I'd think of copper far before gold in that respect.
Greetings From Finland!
Once we get images that proves that it works, can we make a second one with same design cheaper and faster so that we can collect twice the data?
oh? did they finally launch it?
yay.
What's next after infrared telescope? Microwave? Then radio telescope? I'm curious 😅
There are already radio & microwave telescopes. As well as a gamma ray telescope (Fermi)
When will we be getting the first images?
Approximately 6months. The 18 mirror segments are individually adjustable so that they can be moved from their docked launch position to the correct position and angle to reflect the light correctly. According to NASA this process will take some time because the mirrors are designed to move only a few nanometres at a time so that the 18 mirrors combined form a precise parabolic shape.
@@amalieemmynoether992 Thanks!
Ah back when Hank had a Helium addiction. Congrats on kicking the habit.
Flagging this video as needing (not just auto-generated) subtitles. Please help us hard of hearing and deaf folks access your content!! 🥰🤟🏻
Isn't copper a bit more reddish than gold? Though I assume oxidation, even in space, would be a problem.
I see your hair and wardrobe haven't changed in 10 years
As a hobby of mine, i give scientific watch-suggest aka recommendations. Can I?
Ahhh. Life when you could meet up with random strangers without a mask. Feels so yesteryear
Thanks for information
I give scientific watch-suggest aka recommendations.
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jesus finally, hopefully the images and other stuff it provides with new scientific knowledge and maybe life?
it’s main goal isn’t to detect life, but it is possible that it may detect it
Hank
So then, was it the bolts etc falling inside the telescope that screwed up 2 of the mirrors motors meaning that the telescope launched "broken"?
A question for one of the future episodes: how penguins deal with all this solar radiation, since there is such a massive hole in ozone layer over Antarctica?
Also maybe some advice on how redheads living in the Southern part of Australia deal with the massive increase in UV index due to slight shift of ozone hole? Especially difficult during our worst heatwave and Summer on record - currently day 6 in a row above 40°C.
Not fun attempting to move house during the heatwave, along with most extreme rental crisis, Omicron outbreak, 400+ delicate planters with rare species and a household of furniture to shift 400km at very short notice.
At least I'm moving slightly closer to the penguins (South) but slightly cooler temps on southern tip of the state don't make me feel happier about melanoma prevalence in my family.
Fur
I wonder if it can find exotic substances like quadrotriticale.
How are we able to send and receive data and images from Earth to these telescopes, satellites, space probes, rovers, etc. Like, why is it that I get crappy cell service here but we can get a high resolution photograph of deep space from a tremendous distance away! I would very much appreciate any sort of explanation of how this works!
And now the scishow space meme of “take a shot when you hear JWST” ends
GOOOOO SCIENCE!!!
Ashame the Webb became self aware and started attacking the other planets in solar system.
My favorite was when Webb was in a test chamber in Houston for Hurricane Harvey
Hank, not gonna lie, you sounded goofy back then. Never noticed it back then but, boy, it's apparent now. Lol.
😂🤣😂. Love the age contrast 👏🏿👏🏿🧑🏿💻👀😃
So, back to the title, why did it take so much longer than initially planned?
No mention of the main Canadian contribution: Apologies for the delays.
got here rather fast, but not fast enuff it seems
Didn't they look to origami to help design the folding/unfolding of the heatshield iirc.