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by revskill 1436 days ago
These are annoying to me because lacks of real difference from a senior astronaut viewpoint. As a normal user, the only difference i could see is just "brighter", anything more to add to the details ?

Else i could say, just the same.

4 comments

JWST shows a much bigger part of the wavelength spectrum. That means it can image things that would just not show up in Hubble.

E.g. think about far away galaxies that have been redshifted so much (due to the expanding universe) that they fell below the lower wavelength threshold of Hubble.

Yes, also cooler objects show up, which are otherwise invisible and you can see through interstellar dust and clouds better.
Zoom in on a small section of sky and toggle between James and Hubble. James reveals many additional galaxy in each tiny slice of image. Probably hundreds or more in that one image alone.
Check out the video by Scott Manley, he explains quite a bit: https://www.youtube.com/watch?v=0FWO1Pvbhq4
Check out some of the reddest galaxies in the Webb image. Even the big ones are entirely invisible on the Hubble image.