NASA announced the Space Reactor-1 Freedom mission, the first nuclear-powered interplanetary spacecraft launching by end of 2028, which will deploy three Mars helicopters and demonstrate advanced nuclear electric propulsion. The agency also restructured its Artemis program with Artemis IV now targeting the first human lunar landing in early 2028, followed by moon base construction beginning with Artemis V in late 2028. These developments represent NASA's most ambitious deep space exploration timeline, combining nuclear propulsion technology with permanent lunar infrastructure.