When was the last space shuttle servicing mission to Hubble?
Hubble is better than ever as a result of the the servicing missions, 19 years
of servicing missions, with the last being SM4 in 2009.
"And liftoff of Space Shuttle Atlantis, the final
visit to enhance the vision of Hubble into the deepest grandeur of our
universe!"
We were able to replace any of the hardware that we had been having
problems with and we were also able to upgrade our instruments
so that for instance the wide field camera that we have on board now is Wide
Field Camera Three, it's the third version of that.
Each servicing mission we've been able to upgrade the technology and we've got
full redundancy of all of our critical subsystems on Hubble still. Everything
looks excellent and we have no reason not to expect that
Hubble will last until the late 2020s and beyond.
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