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Webb in Full Focus - Mirrors are Aligned!
Webb in Full Focus - Mirrors are Aligned! Claim your SPECIAL OFFER for MagellanTV here: https://try.magellantv.com/launchpadastronomy. Start your free trial TODAY so you can watch 'Jim Al-Kalili's Guide to Life, the Universe, and Everything' and the rest of MagellanTV’s science collection: https://www.magellantv.com/ser....ies/jim-alkhalilis-g
Let's break it down:
00:00 Intro
02:00 Final alignment image in the Large Magellanic Cloud
02:50 Magellan TV
03:38 About the image and its colors
06:36 Why are there 6 diffraction spikes in NIRCam's image?
07:48 NIRSpec and its broken microshutters
10:10 NIRISS - Near-Infrared Imaging Slitless Spectrometer
10:57 How the Fine Guidance Sensors (FGS) work
11:31 Why the Mid Infrared Instrument (MIRI) has fuzzy stars
14:02 Instrument commissioning
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🧭 References:
https://blogs.nasa.gov/webb/20....22/04/28/nasas-webb-
JWST Documentation: https://jwst-docs.stsci.edu
Gáspár et al 2020: https://arxiv.org/abs/2011.11908
Infrared Detectors: https://jwst.nasa.gov/content/....about/innovations/in
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These video series go from the "Size of the known and observed universe" - with the best of the technology we had from the 80's - the Hubble space Telescope.
The intial set is about the size of the observed or known universe.
The second set is the series on the issues of rocket engines, rockets and rocket development and production.
The third set is an of array of information about and from the Hubble Telescope - the technology and the images.
And the fourth set is about the ADVANCES in space telescopes beyond the Hubble Teescope - being the James Webb Sace Telescope.
And the fifth video is about the Euclid Space Telescope
The James Webb Space Telescope and the Euclid Space Telescope are two different research tools - with very different purposes and technologies...
All though the Hubble was up and operational in the early 1980's - there was a prodigious amount of planning, design and then the building of it and then the optical correction of it, after launching...
The James Webb and the Euclid Space Telescopes have also had prodigious lead times in their planning, design, construction and development - but they had a big foundation to build upon - better questions to ask and better understandings and technology to do the further research with, and futher and deeper issues to research....
It's a bit like, "How deep is a very deep hole?" - that can only be solved by figuring out the acceleration rate of gravity and the speed of sound, and then dropping a rock down the hole... and timing the release time and the sound of the rock hitting bottom... Maths.. or using a very slong strong piece of string - but the materials and the weaving technologies have to be developed - so the string is both long enough and strong enough to each the bottom....
And the ladder to reach the bottom - you need the steel, the manufacturing technology and the ways to drill holes in the rocks and to bolt them to the rock, to attach the ladder to the rock, on the way down - and the technical development to do all of this and to construct it....
There is staggering amounts of smarts, research, development and insights, and everything has a foundation of everything before it.
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These are really worth watching.
They are a bit out of date in some aspects... but they are completely relevant....
Very simple - but it gets the ideas in your head - that just cannot be dealt with....
There is too much.
Video 01 out of 08 - Khan Academy - Astronomy - Scale of earth and sun
https://www.mgtow.tv/v/h5GzFi
Video 02 out of 08 - Khan Academy - Astronomy - Scale of solar system
https://www.mgtow.tv/v/FiSpMg
Video 03 out of 08 - Khan Academy - Astronomy - Scale of distance to closest stars
https://www.mgtow.tv/v/uZS4lu
Video 04 out of 08 - Khan Academy - Astronomy - Scale of the galaxy
https://www.mgtow.tv/v/ZJrlKC
Video 05 out of 08 - Khan Academy - Astronomy - Intergalactic scale
https://www.mgtow.tv/v/27Pl4c
Video 06 out of 08 - Khan Academy - Astronomy - Hubble image of galaxies
https://www.mgtow.tv/v/Tx92j4
Video 07 out of 08 - Khan Academy - Astronomy - Big bang introduction
https://www.mgtow.tv/v/XymcLY
Video 08 out of 08 - Khan Academy - Astronomy - Radius of observable universe
https://www.mgtow.tv/v/iUkLXQ
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EQUINOX - The Engines That Came In From The Cold [FASCINATING DOCUMENTARY] (360p version)
https://www.mgtow.tv/v/rJOxGM
This Rocket Is 60 Years Old
https://www.mgtow.tv/v/lYLGbr
I Asked An Actual Apollo Engineer to Explain the Saturn 5 Rocket (Long Cut) - Smarter Every Day 2
https://www.mgtow.tv/v/ChPU6G
HOW ROCKETS ARE MADE (Rocket Factory Tour - United Launch Alliance) - Smarter Every Day 231
https://www.mgtow.tv/v/DKErNw
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NASA’s Incredible Discovery Machine: The Story of the Hubble Space Telescope
https://www.mgtow.tv/v/9pRyxo
A documentary on the incredible discoveries made by the Hubble space telescope
https://www.mgtow.tv/v/zgbsO2
Hubble’s 30th Anniversary Image
https://www.mgtow.tv/v/VRFVWJ
The Extraordinary Things Hubble Has Seen | 100 Incredible Images Of The Universe Montage (4K UHD)
https://www.mgtow.tv/v/tSGmbt
Just happened! NASA just officially announced to boost Hubble's orbit with SpaceX's Dragon
https://www.mgtow.tv/v/RTBC5I
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Webb in Full Focus - Mirrors are Aligned!
https://www.mgtow.tv/v/5lE45f
Incredible Discoveries From Recent James Webb Space Telescope Images Of the Milky Way
https://www.mgtow.tv/v/boriwz
What James Webb Saw Near the Edge of the Universe | James Webb Part 1
https://www.mgtow.tv/v/eWJcJr
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The NEW Euclid Space Telescope - Resolution 500 m at 10 billion light years.
https://www.mgtow.tv/v/LWMfnB
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This is what I mean - when I say if your in a totally dark place, no full moon, no city lights etc., and if you look up the night sky and go "Wow! - Look at all the stars!"
And there are LOTS of them.
But when you don't even have proper astronomical gear to see other planets etc., such as fairly decent binoculars or a fairly strong cheap spotting scope etc., and then look at the night sky - and ALL you can see is horizon to horizon - billions and billions of stars and galaxies.....
And the whole night sky is crammed with them - so much so, they are crammed in like sprinkles on fairy bread.
But with the images from the new James Webb Telescope - the numbers of EVERYTHING out there - are just too huge, the distances are too huge, and the time scales are enormous...
And just the sheer amounts are beyond calculation and they are way beyond comprehension.
https://media-cldnry.s-nbcnews.....com/image/upload/t_