the shuttle was designed to dod rather than civilian requirements because funding was contingent on launching space assets for the us military
nasa flew ten classified shuttle missions for the dod, including one where they waived safety rules and launched north to put a keyhole spy satellite in an unusually inclined orbit. the same contractor that (probably) made the mirror for that satellite also made the hubble backup mirror
radar satellites for topographical and oceanographical research were funded in part with the promise of collaboration with the us military to improve ballistic missile targeting
eight apollo service modules flew classified cameras on loan from dod
nasa collaborated with dod to maintain a cover story that the u2 was a nasa test aircraft when actually it was being used to obtain military intelligence on the soviet union
nasa trivia