Nasa's future telescope gets spy satillite part

[BillT]

The Hubble telescope is NASA's current big telescope in space.
It will be followed by the Webb telescope (being produced) and after that by the WFIRST (Wide Field InfraRed Space Telescope).
A US spy agency gave NASA a couple of 2.4 meter diameter mirrors they didn't need for the project.
Them be big mirrors. No wonder they can read newspapers from space.

http://www.sciencemag.org/news/2016/02/nasa-moves-ahead-its-next-space-telescope

[Mugwump]

...yup...dem's some big mirrors....