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

Sean Duffy wants to fast-track putting a 100kw nuclear reactor on the moon, according to a directive he sent out Thursday. It would help win the "space race."

NASA's acting administrator, Sean Duffy, plans to accelerate the construction of a nuclear reactor that could be used on the moon and alter the way NASA will partner with industry to replace the aging International Space Station.