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The James Webb Telescope

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Muse said:
I'm hell of impressed that they got it out there, assembled and it's actually working just about as well as envisioned, designed, built, tested, etc. To me it's more impressive than the moon landings and Mars explorers.
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given that the moon landings were done with a computer that had less computing power than cheap Android 10 cell phones, i think they're more impressive.

did nasa do a practice run in putting the telescope together here on Earth?
 
JEDI said:
given that the moon landings were done with a computer that had less computing power than cheap Android 10 cell phones, i think they're more impressive.

did nasa do a practice run in putting the telescope together here on Earth?
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Well, kind of, but no 1G gravity and zero atmosphere out where they had to do it were rather different conditions.
 
Red Squirrel said:
Pretty incredible. The lensing effect is really interesting, is that caused by black holes?
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The lensing effect is occurring because massive foreground galaxies are literally warping space and time between them. The area of warped space then acts like a lens to focus and magnify light from background sources approaching through the warped space. Webb is simply observing the area of the warped space.

Even objects the size of the sun cause an observable lensing effect during solar eclipses (which was actually how they proved Einstein 's theory was right, using observations made during the 1919 solar eclipse).

Just goes to show how so much smarter Einstein was than all the rest of us. I can't even imagine what he might have come up with if he had the opportunity to examine an image like that.
 
Steltek said:
Just goes to show how so much smarter Einstein was than all the rest of us. I can't even imagine what he might have come up with if he had the opportunity to examine an image like that.
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thankfully today we have a similar level of genius in saltynuts who will be able to use these observations when developing the universal theory of everything
 
Explain the foreground opacity slider. Is it the same area as seen from Hubble or Earth?


Edit: Also, anything with a lens flare is a star, anything w/o is a galaxy or nebula, correct?
 
IronWing said:
Explain the foreground opacity slider. Is it the same area as seen from Hubble or Earth?


Edit: Also, anything with a lens flare is a star, anything w/o is a galaxy or nebula, correct?
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"AAS WorldWide Telescope is a tool for showcasing astronomical data and knowledge.
Launch the Web Client!
It’s not a physical telescope — it’s a suite of free and open source software and data sets that combine to create stunning scientific visualizations and stories."

So, the background is a collection ground telescope images.
 
IronWing said:
Edit: Also, anything with a lens flare is a star, anything w/o is a galaxy or nebula, correct?
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Well a bright object. We’re bound to get actual images of pulsars or supernova with JWST. But the flare is light reflecting off of the frame holding the secondary mirror.
 
so if a galaxy is only 8000 light years away, then shouldnt the light the telescope is seeing only 8k years old?

How did they get 13B years ago? (almost the birth of the Universe)
 
JEDI said:
so if a galaxy is only 8000 light years away, then shouldnt the light the telescope is seeing only 8k years old?

How did they get 13B years ago? (almost the birth of the Universe)
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There's nuance due to the expansion of the universe but yes, something that close should have emitted the light 8k years ago. Where are you getting 13B light age from something 8k LY away?
 
JEDI said:
so if a galaxy is only 8000 light years away, then shouldnt the light the telescope is seeing only 8k years old?

How did they get 13B years ago? (almost the birth of the Universe)
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Only the deep field image is from 13 billion years ago. Other images, they mentioned distance of them
 
^^^ Nope. Looks like a Shadow ship.

Top 10 Best Sci-Fi Spaceships of all time - Computing Forever Archive ...
 
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