[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math


View post   

File: 843 KB, 807x603, JWST.png [View same] [iqdb] [saucenao] [google]
11909743 No.11909743 [Reply] [Original]

Saddening to hear. We will have to wait even more time. It's now scheduled to launch on Oct. 31, 2021. The previous target date was March 2021.This telescope is one of the few things as to why I'm not killing myself yet. Really excited for what's to come.

>> No.11909801

>>11909743
Seriously, what the fuck is taking so long?

>> No.11909805

>>11909801
I think this time its covids fault.

>> No.11909808

>>11909805
How do they even calculate these dates?

>> No.11909829
File: 26 KB, 369x422, jwst_delays.png [View same] [iqdb] [saucenao] [google]
11909829

>>11909743
and then it will blow up on start

>> No.11909871

>>11909743
I'll take bets on what will be operational first:
>James Webb telescope
>SLS
>Starship
>Berlin Brandenburg airport

>> No.11909876

on the bright side, consider how much awesome shit that has come out of the hubble over the decades

>> No.11909879

>>11909801
Cost plus contract.
The longer they take, the more money they get.
IMHO it should be the other way around:
>You get X to launch it now
>for each month you take untill it's ready you get Y less
>if it fails prematurely, you get Z less

>> No.11909884

>>11909879
So nobody gets paid until it succeeds?

>> No.11909885

>>11909876
It's pure luck that old KH-11 is still even operational...

>> No.11909887

>>11909884
Either that or they get paid in part when they deliver and in part every month of the mission.
Point is:
They would have an incentive to actualy finish the project and deliver a quality product.

>> No.11909903

>>11909887
Alternative idea:
NASA says:
We pay 500 million for the first guys to return us a 5 kg sample of lunar regolith.
>shitposting billionaire company plans and sends up his mission
>plane crash company plans and sends up their mission
>expensive single use rocket company plans and sends up their mission
>first one to complete the mission gets paid
>other ones don't

>

>> No.11909931

>>11909903
IRL I'd expect shitposting billionaire company to have the sample returned and planted a flag before plane crash company even planned the mission.

>> No.11909937

>>11909887
>>11909903
I work in government and hire contractors. They probably bill NASA for the specific work done, with third party oversight to make sure they're billing accurately, and then there's a bonus upon project completion.

>> No.11909950

>All these kids who've never worked in the government sector
If you want to pop your tinfoil conspiracy bubble just work with the government for five minutes. You realize very quick that they can't find their ass with both hands and a map let alone perpetrate shadowy centuries long plots.

>> No.11909962

>>11909950
Don't forget corruption though, it's evetywhere.

>> No.11910020

>>11909871
that's a tough line-up
my guess
1) Berlin Brandenburg airport
2) Starship upper stage
3) SLS
4) James Webb telescope
5) full Starship-Superheavy system
6) SLS Block C

>> No.11910033

>>11910020
>Block C
I messed up.
They have block 1, then comes block 1B and what comes after B? 2.

>> No.11910036

>>11909871
Star Citizen.

>> No.11910041

just looking at that shiny smooth surface makes me want to press my bare hand on it and leave an oil mark that costs more than my house

>> No.11910056

It would be funny if it fails after launching because a motor or some shit broke after sitting idly for like a decade

>> No.11910384

>>11910056
Mechanical and electrical parts dont break down by sitting in carefully monitored and controlled enviroment
At least not in human timescale

>> No.11910390

>>11909743
fuck this stupid fucking telescope
a few years ago when I was in grad school and got delayed another time a professor legit sent an email out that basically said, "JWST is delayed again. Here's why that's a good thing."

>> No.11910405

>>11910390
Better to delay than to rush

>> No.11910406

>>11910384
You could have just disagreed instead making yourself seem retarded by adding this bit

>At least not in human timescale

Even a simple USB drive has a shelf life of 10 years on average

>> No.11910412
File: 59 KB, 528x960, Perils of the Warp.jpg [View same] [iqdb] [saucenao] [google]
11910412

>blows up on the launchpad

>> No.11910413

>>11910405
it has been delayed so many times it is already out of date. Honestly I wouldn't be surprised if TMT finally got approved and built before this piece of crap launched

>> No.11910414

>>11909962
Very true. I always stand by the old adage "never assume malice when ignorance (or greed) will suffice."

>> No.11910434

>>11910413
Consider also that all the over engineered origami folding of the mirrors is because it has to fit inside of the cowling of standard rocket payloads when/if the BFR ever gets off the ground it will have a lot more volume so you could send up something as big with a simpler design.

>> No.11910447

>>11910434
I remember being in a colloquium about the design of JWST and they guy got to the schematics of the origami. The fact that it is not a single mirror means that each sub hexagon is not very sensitive on its edges, meaning that it's total area is actually not much bigger than Hubble. I almost walked out after that.

>> No.11911183

>>11910413
TMT will be years behind ELT, but neither them will replace JWST. JWST is about imaging sensitivity and mid infrared wavelengths, where ground based telescopes will never compete.

>> No.11911198

>>11910447
That's complete bullshit. The total area is 6 times HST and the throughput is basically the same.

>> No.11911201

>>11909743
Is this a case, of "we've spent too much to give up now!"
Would NASA be better off scrapping JWST and starting from scratch?

>> No.11911209

>>11911201
How the fuck would starting from scratch accomplish anything?

>> No.11911223

>>11911201
Fuck no. Sunk cost is a fallacy, but so is cancelling it just because you've already spent a lot of money. The money spent is gone, the only question is if the scientific returns are worth the remaining costs. That is a clear yes. HST cost around 10 billion if you include the service missions, so it's not like this is unprecedented. The scientific case for JWST is stronger than when it was proposed. It was horribly mis-budgeted and mismanaged by NASA but that doesn't change it's potential.

>> No.11911245

Why would a device being built largely in cleanrooms need to have limited interpersonal exposure?

>> No.11911246

test

>> No.11911281

>>11909743
>Really excited for what's to come.
Yes and no.
Yes, there is a slim chance it will enable us to see some previously unseen stuff which throws astronomy on its head and yields some really exciting new discoveries.
No, because it most likely it will just allow us to see more of the same stuff. Wow there's even more galaxies!

>> No.11911794

>>11911281
>No, because it most likely it will just allow us to see more of the same stuff. Wow there's even more galaxies!
Kill yourself you soulless husk. I bet you are Chinese.

>> No.11911817

>>11909879
It's pretty much the other way around. It takes so long because there isn't enough money and the entire budget gets consumed by the upkeep. If the government niggers just paid up they could have had the thing done in half the cost and time.

>> No.11912187

>>11909829
imagine

>> No.11912188

>>11910412
IMAGINE

>> No.11912217

>>11910406
Yeah, I somehow dubt they're using flash memory on that thing
I wanst talking about consoomer tier garbage

>> No.11912231
File: 31 KB, 248x455, James Webb Space Telescope.jpg [View same] [iqdb] [saucenao] [google]
11912231

>>11909743
Not official until someone updates the greatest table on wikipedia.

>>11911246
I will confirm whether your test post worked in 2029.

>> No.11913291

>>11909743
What are its capabilities other than higher resolution when compared to hubble? Can it see beyond the gn z 11 galaxy?can it see ayy lmaos?

>> No.11913331

>>11913291
There are no advantages to it. It's literally just exists to keep bureaucrats and """""scientists""""" who have never added any value to the economy.

>> No.11913342
File: 222 KB, 320x295, niac2020_phiii_turyshev_2.png [View same] [iqdb] [saucenao] [google]
11913342

>>11909743
I am waiting for Solar Gravity Lens Telescope
https://www.nasa.gov/directorates/spacetech/niac/2020_Phase_I_Phase_II/Direct_Multipixel_Imaging_and_Spectroscopy_of_an_Exoplanet/

>The solar gravitational lens (SGL) is characterized by remarkable properties: it offers brightness amplification of up to a factor of ~1e11 (at 1 um) and extreme angular resolution (~1e-10 arcsec). As such, it allows for extraordinary observational capabilities for direct high-resolution imaging and spectroscopy of Earth-like exoplanets.
Under a Phase II NIAC program, we confirmed that a mission to the strong interference region of the SGL (beyond 547.6 AU) carrying a meter-class telescope with a solar coronagraph would directly image a habitable Earth-like exoplanet within our stellar neighborhood. For an exo-Earth at 30 pc, the telescope could measure the brightness of the Einstein ring formed by the exoplanet’s light around the Sun. Even in the presence of the solar corona, the SNR is high enough that in 6 months of integration time one can reconstruct the exoplanet image with ~25 km-scale surface resolution, enough to see surface features and signs of habitability.

>> No.11913347

>>11911281
>No, because it most likely it will just allow us to see more of the same stuff. Wow there's even more galaxies!
It's capable of detecting biosphere signatures in atmospheres

>> No.11913557

>>11913291
JWST was built for high redshift galaxies like GN z11, it will see considerably further and reveal much more detail. Hubble's limitation was that it couldn't see very far into the infrared, so galaxies like GN z11 were at it's limit. It could also only find these galaxies and tell roughly how far away they are. JWST will see at longer wavelengths where it can detect even more distant galaxies and measure their properties like how massive the galaxy is and when it formed. The revolution will come with spectroscopy, something HST was terrible at. JWST has a real multi-object spectrograph. It will measure precise distances which will allow followup from ALMA. JWST imaging will also find the most interesting objects for the coming Extremely Large Telescopes to resolve in detail.

JWST will be able to search for bio-signatures in the atmospheres of exoplanets using transit spectroscopy, but finding life is probably unlikely. Hubble was very limited in doing this because it could only access a small range of the infrared, most molecules were unaccessible. JWST will do much better because of the wavelength coverage.

It has an extremely strong science case, even now.

>>11913331
You have no idea what you're talking about.

>> No.11914180

>>11909829
In the six years to come they could probably improve the detectors significantly. Those were fixed a long time ago.

>> No.11914198 [DELETED] 
File: 919 KB, 1873x1200, LOL.jpg [View same] [iqdb] [saucenao] [google]
11914198

>>11909743
>>11909801
>>11909805
I am sure these delays have NOTHING to do with the women and non-White diversity hires.

>> No.11914351

>>11914198
If only they hired you, man

>> No.11914367

>>11914351
Wow nice job that totally refudiated his point.
No one is allowed to criticize the hiring practices or managerial policies of NASA unless you can perform the job of EVERY employee at NASA.

>> No.11915241

>>11914367
Exactly

>> No.11916476

>>11909743
It is going to blow up on the launchpad or shortly after anyways. Don't get your hopes up.

>> No.11916542

>>11913557
>implying "science" is not an industry

>> No.11917125

>>11914180
Progress in astronomy grade infrared detectors is actually quite slow. It's not like consumer grade electronics. There has only been one new generation since the JWST ones and they're just bigger, not really better. JWST uses mosaics to get over the smaller size, so it wouldn't make much difference. There are still instruments and missions being built with the same detectors.

>> No.11917168

>>11909801
these guys know way more math than you so you cant judge them properly. not knowing math is like being blind.
>>11910412
2020 moment

>> No.11917619
File: 919 KB, 1873x1200, LOL.jpg [View same] [iqdb] [saucenao] [google]
11917619

>>11914351
Wow a jannie deleted my post pointing out how the delays are likely caused by unqualified diversity hires.

>> No.11917872

>>11909808
JWST has to orbit a Lagrange point. I imagine that’s more finicky than LEO but less picky than interplanetary travel.

>> No.11918424

What does it even do other then make wallpapers?

>> No.11918478

>>11917125
>Progress in astronomy grade infrared detectors is actually quite slow.
I know. Then again some of these instruments were completed in 2013 which means that on launch in 2026 there will be a lot of room for improvements. We are not talking about months or a few years, we are talking about decades.

>> No.11918510

>>11917619
I see no difference between this and the fast food industry. Besides getting down to business. Hey google. Maybe you read my rewrite article repeating what I read from other articles but doesn't add on for new or improvement but just more unneeded opinions from people second guessing their parents decision of child birth. Progress boys. Just danny and his hands the government told him to hire instead of Iron Man the 15 minutes in.

>> No.11918630

>>11918510
same

>> No.11918671

>>11917619
Being retarded is unwritten violation of /sci/ rules