I wonder if they considered deploying the sun shield in low Earth orbit,
where it could be repaired and then boosting off to the Lagrange-2 point?
Brent
On 12/5/2021 8:21 AM, John Clark wrote:
Two weeks from Wednesday the long delayed 10 billion dollar James Webb
telescope will finally be launched that could revolutionize our
understanding of the universe; because native Hawaiian barbarians
destroyed the 30 meter telescope which should've become operational
several years ago but now never will, Web will be the first of a new
generation of huge super sophisticated observatories. But I've got my
fingers crossed, and the terror won't stop with a successful launch
but will continue for the next 29 days. I'm especially worried about
the delicate 5 layered 70 foot by 47 foot sunshield required to keep
the telescope cold so it can detect the infrared light it was designed
to find. Something that big obviously can't fit into the nosecone of a
rocket so it must be tightly folded up origami style and be unfurled
in space, but to do that 8 motors, 140 actuators, 150 latches, and 400
pulleys must behave exactly as they were designed to and do so in
precise synchronization or the sunshield will tear and the entire
project will fail. And, because it will not be in low earth orbit but
at the Lagrange-2 point more than 900,000 miles from Earth, there is
no possibility of an astronaut repair mission as happened with the
Hubble telescope if something goes wrong. After 29 days the major
dangers will be behind us but it will still take another 5 months for
the telescope to cool down and be properly aligned before it can start
doing any science.
John K Clark See what's on my new list at Extropolis
<https://groups.google.com/g/extropolis>
twj
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