If it came from NASA, it most likely is either Kodak or Agfa
film. Let's assume Kodak. It could be either aerial film (very
likely for 70mm) or cine film or ordinary still film. Since it
came with that back and is unperforated, it is unlikely to be
cine film. It could be either negative or positive. Many Kodak
negative aerial films did not have an integral orange mask, but
they were compatible with C-41 processing. My guess is that it
is aerial film.