The next-generation vehicle has been a long time in the making, but it likely won't meet its launch deadline in 2025.

Acting NASA Administrator Sean Duffy has directed the agency to fast-track plans to put a nuclear reactor on the moon.

In 2023, NASA awarded Lockheed Martin a contract to design, build and test a nuclear rocket that could help humans travel to ...

This will be Sean Duffy's first major action since President Donald Trump named him interim NASA administrator in June.