A submarine crew of roughly 130 spends months beneath the ocean's surface in a narrow, windowless vessel, with no sunlight, ...

Add Yahoo as a preferred source to see more of our stories on Google. Two United States based firms have entered into a partnership to advance high-power nuclear electric propulsion technology for ...

China’s new "sailless" nuclear submarine spotted in Shanghai signals a leap in stealth tech. How does this shift the undersea ...

The first Mars astronauts could spend six to nine months trapped in a spacecraft unless propulsion changes dramatically. This breakdown compares Starship-style missions with nuclear propulsion and ...

The trip to Mars and back is not one for the faint of heart. We're not talking days, weeks, or months. But there are technologies that could help transport a crew on that round-trip journey in a ...

NASA plans to send crewed missions to Mars over the next decade—but the 140 million-mile (225 million-kilometer) journey to the red planet could take several months to years round trip. This ...

General Atomics and NASA have successfully tested a new type of nuclear thermal propulsion reactor fuel at the NASA Marshall Space Flight Center in Alabama. The new fuel could help power propulsion ...

Interplanetary travel to Mars aboard nuclear-powered spaceships may sound like science fiction – yet NASA is planning to make ...

It has long become obvious that if we are to expand our reach into the solar system, the current means of propulsion for spaceships would simply not do. With such goals set for the near future, the ...

MIT researchers think they've worked out exactly how Russia's Burevestnik nuclear-powered missile flies. "It's almost certainly a terrible idea," one analyst said. "But it's not an impossible idea." ...

A consortium led by Belgian engineering firm Tractebel has completed the European Space Agency-commissioned RocketRoll project on nuclear electric propulsion for space exploration. The consortium has ...