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."

This is the first major agency effort by the interim NASA administrator, who is also the Transportation secretary and a former Fox News host.

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.