Trying to get a nuclear reactor on the surface of the moon is going to take time – maybe much longer more than NASA wants. Julia Musto reports

The reactor would launch to the moon by 2030, according to a directive by Acting NASA Administrator Sean Duffy that was sent to NASA officials in July and obtained by NPR. It's an ambitious target that has some in the scientific community concerned about high costs and a potentially unrealistic schedule.

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