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NASA is going back to an old idea as it tries to get humans to Mars. It is teaming up with the Defense Advanced Research Projects Agency (DARPA) to test a nuclear thermal rocket engine in space with ...

Solar panels do a remarkable job during the day; however, the hours when people need the most electricity rarely coincide with the hours when sunlight is strongest. That mismatch has always created a ...

Engineers say a nuclear thermal rocket could cut astronauts' travel time to Mars from nine months to two. Credit: NASA NASA and the U.S. military plan to test a nuclear-powered rocket engine in space ...

NASA studied "nuclear thermal propulsion systems" during the Cold War, but shelved the idea because it wasn't necessary. Nuclear-powered spacecraft could send humans to Mars faster and allow them to ...

NASA is partnering with the Defense Advanced Research Projects Agency, or DARPA, to use a nuclear thermal rocket engine in space, according to reports. In a press release on Tuesday, NASA said the ...