James Webb Space Telescope, information, updates and discussion |
James Webb Space Telescope, information, updates and discussion |
Aug 23 2005, 02:01 PM
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Member Group: Members Posts: 134 Joined: 13-March 05 Member No.: 191 |
The manufacture of the JWST mirror blanks has now been completed.
Despite this milestone, the fate of JWST is still somewhat precarious, because although the scientific bang from the telescope is expected to be huge, the bucks required have increased to a staggering $4.5 billion. A Space.com article on the squeeze in NASA's space-based astronomy plans gives some background. The JWST home page can be found here. The Space Telescope Science Institute, which runs Hubble, also has a site here. As does ESA. |
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Aug 5 2023, 11:49 PM
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
Yeah, that's certainly true of the messier stuff, like galaxy formation, which depends on all sorts of details like feedback and interactions. It's complicated enough that you can't just write down what will happen based on the fundamental laws of physics - you have to make all sorts of assumptions/guesses about what's important. No doubt Webb will help a lot there.
The bigger picture of cosmology (baryons, dark matter/energy, flatness, GR; what's usually referred to as "the cosmological model") is much more secure (apart from that niggly Hubble tension...). |
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