02-13-2016, 02:38 PM
HOTPE,
"final cost of Webb telescope assumes it will not arrive in orbit with a deformed mirror like the Hubble, resulting in a lengthy non-operational period during which scientists needed to devise a corrective workaround. As well as multiple space shuttle missions to repair and upgrade."
The JWST is non-serviceable. If something major goes wrong, that's it, end of mission.
"final cost of Webb telescope assumes it will not arrive in orbit with a deformed mirror like the Hubble, resulting in a lengthy non-operational period during which scientists needed to devise a corrective workaround. As well as multiple space shuttle missions to repair and upgrade."
The JWST is non-serviceable. If something major goes wrong, that's it, end of mission.