Nuclear reactors in space may sound like something out of science fiction, but they are likely to prove important for powering long-term space missions.

Placing an atomic energy source on the lunar surface is “not science fiction,” experts say, but does pose technical challenges.

If you want to know where the next nuclear reactor is being built, you may have to look up at the stars. Transportation Secretary and interim NASA Administrator Sean Duffy is moving forward with a plan to construct nuclear reactors on the moon in the hopes of expanding American influence in outer space.