Nissan isn’t in a great spot right now. The Japanese manufacturer is planning to close factories to stay alive amid a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A nuclear thermal ...

Many automakers are on a mission to make their internal combustion engines better at turning fuel into energy. Friday, Nissan says that it reached a breakthrough to reach 50 percent thermal efficiency ...

The Slocum Glider, developed by Webb Research Corp. (WRC) can propel itself through water using only the differential temperatures of varying depths and a thermal engine. The glider's thermal engine ...

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 ...

NASA and DARPA will work together to develop and demonstrate a nuclear thermal rocket engine in space by 2027. The Demonstration Rocket is part of the Agile Cislunar Operations (DRACO) programme.

Research reveals how reducing dimensionality can trap heat, opening the door to high-efficiency energy devices.

Thermal nuclear propulsion could cut travel time to Mars down to just three months. Elon Musk has referred to ideas like this as a way to keep astronauts safe from cosmic radiation. This company's ...

A nuclear thermal rocket engine in development could one day transport humans to Mars. The Defense Advanced Research Projects Agency, a research arm of the US Department of Defense, and NASA are ...