James Webb Telescope launched nominally and on its way. JOY to the world, best christmas gift ever to Human kind.

Nostradamus

Bionic Poster
This will enable those overgrown lobsters from "Aliens" to track the course of the telescope back to Earth, come here, and spray acid all over us while they have their way with our ladies' abdomens
you mean they are stealing our women ??

 

Nostradamus

Bionic Poster
This will enable those overgrown lobsters from "Aliens" to track the course of the telescope back to Earth, come here, and spray acid all over us while they have their way with our ladies' abdomens
FYI, this telescope cost 30 Billion dollars to make.
 

Nostradamus

Bionic Poster
Do you guys think we will see Jesus when we look far enough with this telescope ? supposedly we should be able to see pretty close to beginning of our universe with this telescope, NASA states
 

Mongolmike

Hall of Fame
Hubble fan here. ABJWST.
Absolutely. Any backers of space exploration has to love what Hubble has provided. Webb could surpass Hubble with imagery, should surpass Hubble scientifically.....IF it can deploy properly.
It is so complex.... smh.... Hubble, not being nearly as complex has had/needed? 5 service missions. There will be ZERO service missions to Webb since it will be so far out. Zero. It HAS to be perfect.

Would've been nice to launch it into mid orbit, get everything deployed and tested, do human servicing if required, then couple another booster to insert it to it's designed orbit months later. More timely, more expense? Yep. But the alternative now.... billions of dollars could be all completely lost with no chance of repair.
 

Sudacafan

Bionic Poster
I would like to look into the idea that this was the best Xmas gift ever for human kind a little bit more.
 

Mongolmike

Hall of Fame
I would like to look into the idea that this was the best Xmas gift ever for human kind a little bit more.

Hmmm.... well what about the Chinese gift of The covid.... it is the gift that keeps on giving. That's gotta be worth something, right?
Wait. Oh. You said BEST Xmas gift? Sorry. Nevermind.
 

alexio

Legend
I would like to look into the idea that this was the best Xmas gift ever for human kind a little bit more.
yea, we must at all costs find an alien mind in other parts of our universe to help figure it out and come up with a unique pill against this virus (drank and it's done quite quickly) in order to expose a global conspiracy against humanity, no one wants to be a slave for sure, but pharma is coming, oh..hard times awaiting us, all hope for a response from other civilizations
 

alexio

Legend
Hmmm.... well what about the Chinese gift of The covid.... it is the gift that keeps on giving. That's gotta be worth something, right?
Wait. Oh. You said BEST Xmas gift? Sorry. Nevermind.
it's too easy for everything to coincide, there is a lab in china and a virus appeared in the same place, what a coincidence hah, you always need to look for who is more profitable out of it, and therefore it becomes clear where the wind is blowing from, i.e. namely from the country that is on the other side of the world from china, well i guess you got it which country it is (to set china up coz that country doesn't like so bad losing the leadership blabla..)
 
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Injured Again

Hall of Fame
Absolutely. Any backers of space exploration has to love what Hubble has provided. Webb could surpass Hubble with imagery, should surpass Hubble scientifically.....IF it can deploy properly.
It is so complex.... smh.... Hubble, not being nearly as complex has had/needed? 5 service missions. There will be ZERO service missions to Webb since it will be so far out. Zero. It HAS to be perfect.

Would've been nice to launch it into mid orbit, get everything deployed and tested, do human servicing if required, then couple another booster to insert it to it's designed orbit months later. More timely, more expense? Yep. But the alternative now.... billions of dollars could be all completely lost with no chance of repair.
Couldn't reasonably be done that way. Once everything is deployed and calibrated, moving it from earth orbit to L2 would cause everything to go out of calibration if it used any kind of thrust that would get it out there in less than a few years. The other major problem would be the amount of propellant necessary to accelerate it out of Earth orbit and slow it down at L2. You'd need much more than twice the amount of propellant, because to leave orbit you have to accelerate all of the propellant that hasn't been used to escape Earth orbit, along with all of the propellant necessary to slow down at L2. I'm not positive but don't believe the thrusting to get out of earth orbit could be accomplished without exposing the deployed spacecraft to the sun, possibly damaging some of the instrumentation.

I think the current timelines call for a four or five month calibration period once it reaches L2, with first light in about June or so.

This paper:


has a lot more interesting but pretty technical information.

These are fantastic times for those interested in this kind of thing (which I am).
 

Harry_Wild

Talk Tennis Guru
It is suppose to take 6-7 month to set up before it broadcast back any images back to Earth. If I recall, it was suppose to launch back in 2007 but the telescope did not function correctly. It launch from French New Guinea on an Ariane 5 Rocket.
 
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Mongolmike

Hall of Fame
Couldn't reasonably be done that way. Once everything is deployed and calibrated, moving it from earth orbit to L2 would cause everything to go out of calibration if it used any kind of thrust that would get it out there in less than a few years. The other major problem would be the amount of propellant necessary to accelerate it out of Earth orbit and slow it down at L2. You'd need much more than twice the amount of propellant, because to leave orbit you have to accelerate all of the propellant that hasn't been used to escape Earth orbit, along with all of the propellant necessary to slow down at L2. I'm not positive but don't believe the thrusting to get out of earth orbit could be accomplished without exposing the deployed spacecraft to the sun, possibly damaging some of the instrumentation.

I think the current timelines call for a four or five month calibration period once it reaches L2, with first light in about June or so.

This paper:


has a lot more interesting but pretty technical information.

These are fantastic times for those interested in this kind of thing (which I am).
I know that, but still say "it woulda been nice if"....

I will be happily shocked if we are getting great images in a year or so. More than thrilled. It's just the reality of the complexity has me very worried. This is an amazing opportunity, l hope everything works as planned.
 

Injured Again

Hall of Fame
I know that, but still say "it woulda been nice if"....

I will be happily shocked if we are getting great images in a year or so. More than thrilled. It's just the reality of the complexity has me very worried. This is an amazing opportunity, l hope everything works as planned.
The first mid-course correction burn completed a while ago. The engine was on for 65 minutes and created a delta-V of 16-17 meters/second, or somewhere around 37 MPH. So an acceleration of roughly 0.5 MPH per minute. That's way more gentle than I expected.
 
100x more powerful than its predecessor. absolutely right thing to do m8, started begging universe for info of enlightenment even if only couple of cm of a mil miles journey towards right direction............much better than sending dead meat to search for 'new home'.

sowing the seeds, not moving the tree. dat's hw we came to dis planet n it'll be the same way for us to 'move to new home'. lololololol m8, not sure hw long could take for the idiots to understand dis, m8. it might take another few 000s yrs:?)):-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D...........
 
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Dan Lobb

G.O.A.T.
nothing wrong started begging for enlightenment even if only couple of cm of a mil miles journey towards right direction............much better than sending dead meat to search for 'new home'.

sowing the seeds, not moving the tree. dat's hw we came to dis planet n it'll be the same way for us to 'move to new home'. lololololol m8, not sure hw long could take for the idiots to understand dis, m8. it might take another few 000s yrs:?)):-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D:-D...........
The Tesla folks are making preparations to colonize Mars, which is a good place for EVs to find a permanent home.
 

stringertom

Bionic Poster
@sureshs , will you feel uncomfortable when the Webb transmits images of Uranus on the World Wide Web OR will you take advantage of the free advertising and make your A.S.S. the greatest tennis tip ever ???
 

Tshooter

G.O.A.T.
Couldn't reasonably be done that way…
Thousands of scientists and engineers have spent decades planning and working on this cutting edge project. Then a TTW poster points out in a few sentences why they should have gone about it differently. I was so proud of TTW. Then you ruined it.:mad:

Incidentally, the cost seems like chump change. We just blew another 777+ billion on the annual military budget so 10 billion or so over decades is a GAO rounding error and they’ve already developed many novel technologies in getting Webb built. We should start planning to go bigger with the next one, if we haven’t already. Go big or go home.:)
 
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Mr.Lob

Legend
Don't know why they couldn't fly Webb to a closer, serviceable earth orbit, to fully deploy and check operational status. If all systems go, a small booster could jettison the craft out to its intended nonserviceable orbit. Hopefully it all works out. Like Nostradamus, I want to look back in time to see if Jesus played tennis.
 

stringertom

Bionic Poster
Don't know why they couldn't fly Webb to a closer, serviceable earth orbit, to fully deploy and check operational status. If all systems go, a small booster could jettison the craft out to its intended nonserviceable orbit. Hopefully it all works out. Like Nostradamus, I want to look back in time to see if Jesus played tennis.
There’s an informative article by Brian Resnick at vox.com that even a Luddite such as first person here can understand without much problem. I had no idea what a Lagrange point was and why it’s critical to NASA’s process before reading Resnick’s account of what Webb is and why it’s so different from the serviceable Hubble. Check it out for why they had to be so outside the box in their logic.
 

Harry_Wild

Talk Tennis Guru

Wonder what it can see if James Webb telescope is turn around and focused on Earth?
Will it find any “intelligent life” on the planet?
 
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