Could astronauts travel to Mars on nuclear-powered rockets? These scientists want to make it happenBy otako_fzbgs4 / September 24, 2025 The team’s design uses fission reactions involving uranium to heat propellant. Related posts: What it was like to experience the sunrise solar eclipse in New Brunswick SpaceX Fram2 1st polar astronaut mission: Live updates NASA practices recovering its next moon astronauts: Space photo of the day NASA officially adds SpaceX's giant Starship megarocket to its launch roster