Trump issued an Executive Order on Promoting Small Modular Reactors for National Defense and Space Exploration.

The US has used transportable nuclear reactors for nearly 70 years for functions like propelling aircraft carriers through the sea and enabling submarines to stay underwater for long periods of time. Small modular reactors have the potential to enhance energy flexibility and energy security at domestic military installations in remote locations.

NASA will explore the use of nuclear energy systems for human and robotic exploration missions through 2040. The US will continue to adhere to the highest standards for nuclear nonproliferation and safety.