Another outstanding result, worthy of many beers! The Hubble Team really are amazing, and I hope that when the HST finally shuts its eyes for the last time, the same skills, devotion and determination can keep the JWST going just as long - even if there's a *SMALL* difference between LEO and L1. :)
Hubble Space Telescope restored to service: No repeat of those missing messages, but here's a software patch anyway
The Hubble Space Telescope team has triumphed once again and returned the veteran observatory to service. The Space Telescope Imaging Spectograph was recovered on Monday 6 December, meaning that "full science operations" are back up and all four active instruments are collecting data. Furthermore, there has been no repeat of …
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Wednesday 8th December 2021 11:55 GMT Eclectic Man
Re: HOORAY!
There is an explanatory article by NASA here:
https://www.nasa.gov/topics/universe/features/webb-l2.html
"Why send the Webb telescope all the way out to L2? When astronomers began to think about where the Webb telescope should be placed in space, there were several considerations to keep in mind. To begin with, the Webb telescope will view the universe entirely in infrared light, what we commonly think of as heat radiation. To give the telescope the best chance of detecting distant, dim objects in space, the coldest temperatures possible are needed."
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Wednesday 8th December 2021 15:10 GMT Anonymous Coward
Re: HOORAY!
HST will not be able to resolve JWST (same reason it can't resolve Apollo spacecraft on Moon). For blue light (better for resolution) wavelength 450E-9m, mirror is 2.4m so HST can resolve a bit less than 1.22 * 450E-9/2.4 radians, about 2.3E-7 radians. JWST is about 20m in longest dimension and is 1.5E9m from HST (Earth-L2 distance), so subtends about 20/1.5E9 or 1.3E-8 radians, so more than ten times smaller than HST can resolve. May be able to see it as point of light, but no more.
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