Projects rover and nerva were canceled over their objection in january 1973, and none of the reactors ever flew. Nerva stages, launched by the saturn v, would have been clustered in earth orbit to send manned expeditions to mars. In 1972, a nuclear rocket roared for 109 minutes in the nevada desert, proving a propulsion breakthrough that doubled the performance of chemical engines
The program, called nerva, was so. Nasa/aec project of the 1960's to develop nuclear thermal propulsion In the end, nerva ended up being revisited by nasa a few times for missions to mars, but nothing came of it
Nerva, which was to be used for a manned mars mission, was cancelled when funding for the space program in general and the mars mission in particular was cut in the early 1970s. Space program was cancelled by congress before a manned visit to mars could take place. A reusable space shuttle to lower the cost of getting stuff to orbit, a permanent space station, and a nuclear rocket mission to mars Nixon said in his budget he could only support one of those.
The program had strong political support from senators clinton p Anderson and margaret chase smith but was cancelled by president richard nixon in 1973
