According to many, hubble was a either a repurposed keyhole satellite, or was developed as a cover for a new generation of spy satellites. Rumour has it there a

According to many, hubble was a either a repurposed keyhole satellite, or was developed as a cover for a new generation of spy satellites. Rumour has it there are literally dozens of HST equivalents in orbit, but only one of them points away from earth. Here's a source which makes this rather clearer - if this wasn't the case, why would the NRO happen to have two hubble-spec telescopes just sat around? http://www.planetary.org/blogs/guest-blogs/jason-davis/nasa-gets-two-hand-me-down.html http://www.planetary.org/blogs/guest-blogs/jason-davis/nasa-...