
NASA to test nuclear-powered interplanetary propulsion with Mars flyby and three helicopter scouts
NASA plans the late-2028 SR-1 Freedom mission, a nuclear-electric propulsion test that will fly to Mars in 2029 without landing, then release SkyFall—three Ingenuity-style helicopters designed to survey the Martian environment, measure weather, and use ground-penetrating radar to search for subsurface ice. The mission aims to validate nuclear-powered propulsion for deep-space travel, build flight heritage for future Moon and Mars missions, and inform later power systems like Lunar Reactor-1.












