The White House has announced a plan to launch nuclear power systems in space by 2028, with the goal of supporting a moon base. However, the timeline for a nuclear reactor to be orbiting the moon is unclear, with some reports suggesting it could be as early as 2028, while others indicate a demonstration of nuclear space power may not occur until 2031. The plan appears to involve the Pentagon and NASA, and is part of a broader effort to advance space nuclear power.