NASA and Department of Energy Collaborate on Space Nuclear Reactors

This strategic partnership creates an end-to-end framework that covers nuclear fuel production, advanced research, launch integration, and operational safety. The agreement was formalized by NASA Administrator Jared Isaacman and U.S. Energy Secretary Chris Wright during the Science: A Golden Age Summit in Washington, marking a concerted effort to bolster American leadership in deep-space missions.

“We are entering the ‘Nuclear NASA-era,’ which represents a major transformation for space exploration,” Isaacman stated. He emphasized that nuclear power will extend exploration capabilities and enable the development of advanced spacecraft and instruments, laying the groundwork for future fission-powered missions.

The collaboration includes plans for the 2028 Space Reactor-1 Freedom mission, which will test fission capabilities in deep space with a trajectory toward Mars. This mission is anticipated to support a 2030 Lunar Reactor-1, designed to provide power for Moon bases during periods of darkness.

NASA is also leveraging radioisotope power systems to expand its reach, with the 2028 Dragonfly rotorcraft utilizing a radioisotope generator for studying Saturn’s moon Titan. Additional radioisotope heater units will protect instruments aboard the European Space Agency’s Rosalind Franklin rover as it searches for signs of life on Mars.

The agreement, effective November 1, formalizes interagency collaboration on space nuclear operations. Secretary Wright noted the importance of this partnership, attributing the success of America's nuclear initiatives to President Trump.

Nuclear electric propulsion is a key focus of the partnership, offering higher efficiency and continuous thrust, which could significantly reduce travel times in deep space and lower cosmic radiation exposure for astronauts.

Interest in space nuclear technology is growing globally, with countries like China and Russia developing their own reactors and propulsion systems for space exploration. Russia, for instance, is advancing its “Zeus” nuclear-powered space tug for heavy payload transport and orbital debris clearance.