CraigT82 Posted August 22, 2022 Share Posted August 22, 2022 Some fabulous NIRCam images of Jupiter from JWST released today, with different lengths of NIR mapped to RGB. https://esawebb.org/images/ 19 Link to comment Share on other sites More sharing options...
Craney Posted August 22, 2022 Share Posted August 22, 2022 These are great. Thanks for posting. I would hate to be the person deciding what to photograph next !!.... Does it do star-trails ?? 3 Link to comment Share on other sites More sharing options...
maw lod qan Posted August 22, 2022 Share Posted August 22, 2022 Those are amazing images! Thanks for posting. Wouldn't surprise me Saturn will be close behind Jupiter! 2 Link to comment Share on other sites More sharing options...
Sunshine Posted August 22, 2022 Share Posted August 22, 2022 Incredible! JWST being an infrared telescope I would assume the pink spots are indicative of hot spots correct? Link to comment Share on other sites More sharing options...
Sunshine Posted August 22, 2022 Share Posted August 22, 2022 (edited) 22 minutes ago, Craney said: Does it do star-trails ?? 🤣🤣 Oh boy this made me spit coffee all over my computer screen 🤣 Edited August 22, 2022 by Sunshine 2 Link to comment Share on other sites More sharing options...
bomberbaz Posted August 22, 2022 Share Posted August 22, 2022 Loving the aurora diffractions, incredible piece of kit that will continue to blow peoples minds. I believe there is some doubt building as to the validity of the BB theory given the sizes and density of galaxies in the early universe, simply too much of everything to match existing theories! 1 Link to comment Share on other sites More sharing options...
cajen2 Posted August 22, 2022 Share Posted August 22, 2022 (edited) If the BB theory is proved wrong, it may well be unnecessary to invoke dark matter and dark energy, which I've always been deeply suspicious of. The only problem is accounting for red shift. Imagine that they decide there was no BB and the universe is in steady state. There's be cosmologists leaping out of windows all over the world! 🤣 Edited August 22, 2022 by cajen2 1 Link to comment Share on other sites More sharing options...
OK Apricot Posted August 22, 2022 Share Posted August 22, 2022 1 minute ago, cajen2 said: If the BB theory is proved wrong, it may well be unnecessary to invoke dark matter and dark energy, which I've always been deeply suspicious of. The only problem is accounting for red shift. Imagine that they decide there was no BB and the universe is in steady state. There's be cosmologists leaping out of windows all over the world! 🤣 I mean, this kind of gives me chills. You get so used to a prevailing theory and take it at face value, but then you remember; astronomers used to think Andromeda was a nebula within the galaxy and the galaxy was the universe, until new data and theories arrived... Even if not and models can be rejiggled, JWST is something else entirely! An instrument like this at our disposal... 😳 2 Link to comment Share on other sites More sharing options...
Sunshine Posted August 22, 2022 Share Posted August 22, 2022 (edited) 1 hour ago, OK Apricot said: I mean, this kind of gives me chills. You get so used to a prevailing theory and take it at face value, but then you remember; astronomers used to think Andromeda was a nebula within the galaxy and the galaxy was the universe, until new data and theories arrived... Even if not and models can be rejiggled, JWST is something else entirely! An instrument like this at our disposal... 😳 Regarding the BB, I firmly believe that just as in the last thousand years, long held theories were proved wrong so too today we may well be proved wrong about long standing theories. Our universe is far from being revealed to us and with every miraculous instrument like the JWST is, new light will be cast on our view of cosmology. Now this doesn’t mean I don’t believe the BB theory, just that we as humans have held many theories to be fact which in time have been toppled. Remember the “force” of gravity? just to name one. Edited August 22, 2022 by Sunshine Link to comment Share on other sites More sharing options...
Zermelo Posted August 22, 2022 Share Posted August 22, 2022 On the "challenging the big bang" point, the scientists have said they were mis-quoted, or selectively quoted. Link to comment Share on other sites More sharing options...
DaveL59 Posted August 22, 2022 Share Posted August 22, 2022 So if there really was a big bang and as a result all of the stars etc and us formed but its still expanding, then as per a regular explosion, won't at some stage when the energy pushing outward runs out it'd all (well some/most) collapse back toward the originating centre. So we could've have saved $10bn and just waited a while longer and all those interesting bits will be a lot closer for us to observe... 😉 2 Link to comment Share on other sites More sharing options...
andrew s Posted August 22, 2022 Share Posted August 22, 2022 2 minutes ago, DaveL59 said: So if there really was a big bang and as a result all of the stars etc and us formed but its still expanding, then as per a regular explosion, won't at some stage when the energy pushing outward runs out it'd all (well some/most) collapse back toward the originating centre. So we could've have saved $10bn and just waited a while longer and all those interesting bits will be a lot closer for us to observe... 😉 Well it was thought that was a possibility but the expansion is now dominated by dark energy that does not dilute as the Universe expands so the current view is it will go on expanding for ever. Regards Andrew 1 Link to comment Share on other sites More sharing options...
Malpi12 Posted August 22, 2022 Share Posted August 22, 2022 1 hour ago, cajen2 said: and the universe is in steady state. There's be cosmologists leaping out of windows all over the world! 🤣 I am sure you meant only some of them, the others of us who fondly remember Fred Hoyle will have a big smile 2 Link to comment Share on other sites More sharing options...
cajen2 Posted August 22, 2022 Share Posted August 22, 2022 11 minutes ago, andrew s said: Well it was thought that was a possibility but the expansion is now dominated by dark energy that does not dilute as the Universe expands so the current view is it will go on expanding for ever. Regards Andrew .....if it actually exists, that is....😉 Link to comment Share on other sites More sharing options...
bomberbaz Posted August 22, 2022 Share Posted August 22, 2022 Hmm perhaps in my statement above which sparked this BB theory discussion I should have been more precise in what I meant. There are some who are thinking the actual mechanics for the BB aftermath are not as first thought, I wasn't meaning the BB never happened, just that it "might" have developed differently following the "dark ages". 1 Link to comment Share on other sites More sharing options...
andrew s Posted August 22, 2022 Share Posted August 22, 2022 (edited) 36 minutes ago, cajen2 said: .....if it actually exists, that is....😉 All scientific theories are subject to revision on the basis of new observations and JWST should provide many new insights just as the discovery of the CMB favoured the BB theory over the SS theory. In the meantime it is wise, in my opinion, to be clear what is the accepted best theory and which are more speculative or fringe. Regards Andrew Edited August 22, 2022 by andrew s 2 Link to comment Share on other sites More sharing options...
cajen2 Posted August 22, 2022 Share Posted August 22, 2022 Just stirring the pot....😉 Seriously, though, I've been expecting a cosmological paradigm shift for a while now. I wonder when the tipping point will come: if the JWST discovers more things that are problematical for current theories.... Link to comment Share on other sites More sharing options...
Paul M Posted August 22, 2022 Share Posted August 22, 2022 I'm just about of an age that I remeber, at least by the books vailable to me at the time (low-end secondary modern education), the Steady State theory being on an almost equal footing to the Big Bang. And whilst I realise that the BB fits observational evidence and theoretical models reasonably well, I have a school boy hankering for Steady State cosmology. Am I alone in hoping that JWST delves close enough to the "edge" that a new pysics is required to explain observation? Lets do away with dark energy and dark mattter.... please! 🥳 Link to comment Share on other sites More sharing options...
DaveS Posted August 22, 2022 Share Posted August 22, 2022 Link to comment Share on other sites More sharing options...
andrew s Posted August 22, 2022 Share Posted August 22, 2022 5 minutes ago, Paul M said: I'm just about of an age that I remeber, at least by the books vailable to me at the time (low-end secondary modern education), the Steady State theory being on an almost equal footing to the Big Bang. And whilst I realise that the BB fits observational evidence and theoretical models reasonably well, I have a school boy hankering for Steady State cosmology. Am I alone in hoping that JWST delves close enough to the "edge" that a new pysics is required to explain observation? Lets do away with dark energy and dark mattter.... please! 🥳 What would you like to replace them? 😊 Regards Andrew Link to comment Share on other sites More sharing options...
Paul M Posted August 22, 2022 Share Posted August 22, 2022 1 hour ago, andrew s said: What would you like to replace them? 😊 Regards Andrew Fluffy clouds and pink unicorns! 🤪🤣 3 Link to comment Share on other sites More sharing options...
Macavity Posted August 23, 2022 Share Posted August 23, 2022 The image gives (another) real hint of the 3-Dimensional structure of the clouds. It is so tantalising... the "Towering Thunderheads" of the Artistic Imagination? 😎 Link to comment Share on other sites More sharing options...
andrew s Posted August 23, 2022 Share Posted August 23, 2022 12 hours ago, Zermelo said: On the "challenging the big bang" point, the scientists have said they were mis-quoted, or selectively quoted. I think this is the paper. Regards Andrew 1 Link to comment Share on other sites More sharing options...
Zermelo Posted September 7, 2022 Share Posted September 7, 2022 Another explanation of the confusion https://www.space.com/james-webb-space-telescope-science-denial/ Link to comment Share on other sites More sharing options...
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