texl1649 wrote:And before folks ask/comment about the cost, note that, again, supposedly/rumor is NASA was offered 2 for free that were ‘surplus’ for whatever reason.
ssteve wrote:JWST doesn't really replace Hubble-- it's a different sort of instrument. Better, of course, but not a total replacement.
The 2021 proposed budget for NASA axed WFIRST and SOFIA-- haven't heard where that all went.
texl1649 wrote:We have a lot of keyhole satellites up there, and Hubble is essentially the same thing but pointed outward, from what I’ve read. I’d expect if it did suddenly fail that there could be discussions to launch an upgraded basic replacement. KH-11 and KH-12 with optics also by Perkin Elmer probably could be adapted, if NASA somehow wanted to move fast, to work. JWST is gonna be great I hope but it is amazing to me no direct successor to Hubble has ever been fabricated/considered.
https://www.universetoday.com/65458/spy ... ook-alike/
https://www.nextbigfuture.com/2012/06/h ... s-spy.html
And before folks ask/comment about the cost, note that, again, supposedly/rumor is NASA was offered 2 for free that were ‘surplus’ for whatever reason.
http://www.spacesafetymagazine.com/spac ... satellite/
https://spaceflightnow.com/2015/05/01/n ... g-in-2018/
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