Kind of related: In 2012, the NRO -- i.e. the US agency responsible for spy-satellites -- surprised NASA w/two brand-new Hubble-equivalent telescopes (in some ways better, actually) that it just happened to have lying around since the 90's or so:

https://en.wikipedia.org/wiki/2012_National_Reconnaissance_O...

https://www.washingtonpost.com/national/health-science/nasa-...

(Looks like NASA is getting to move forward on using this gift:

https://spaceflightnow.com/2016/02/18/nasa-moves-forward-wit...)