Home / Jobs / Neutron spectrometer (MoonFall) Job Neutron spectrometer (MoonFall) A neutron spectrometer on the MoonFall drones to help measure subsurface water at the south pole. Themes: Science & sensing · Subsurface CompaniesNASA FlightsMoonFallNET 2028 · NASA JPL MoonFall sends four propulsive hop drones to the south pole in 2028. Cargo Neutron spectrometer (MoonFall) Sourcesjpl.nasa.govnasa.gov