The United States is rushing to put nuclear power reactors on the Moon and Mars, and hopes to launch the first system by the end of the decade.NASA formally committed to using nuclear power on Mars in December 2024 -- the first of seven key decisions necessary for human exploration of the Red Planet.

NASA’s acting administrator Sean Duffy is fast-tracking the agency’s plans to build a nuclear reactor on the lunar surface, a move that highlights the Trump administration’s focus on human spaceflight and establishing a long-term presence on the Moon.