NASA’s push for a new nuclear rocket engine is not just another upgrade to the hardware we strap to the bottom of spacecraft.

What does taking a selfie and going into space have in common? More than you might think. It turns out the camera in your cellphone made its way to you via space technology developed at NASA’s Jet ...

I’ve grown up with rockets that burn chemical fuel, but NASA’s next big leap in propulsion could make those engines look as dated as steam trains. By turning to nuclear power in space, the agency is ...