Hydrogen fuel cell power plants for ships face the challenge of hydrogen’s low volumetric energy density at normal temperature ...

30 Seconds, $5,000. Liquid hydrogen is bulky, expensive and extremely hard to handle. Ozone ... Harold W. Ritchie promises that solid-fuel rockets with 2,000,000 Ibs. of thrust can be built. He ...

The fuel was subjected to full reactor heat and hydrogen gas and kept there for 20 minutes – about what a nuclear engine would have to endure during a boost maneuver.

While this latest test doesn’t make nuclear-powered rocket engines viable just yet, it’s an important step on the journey. This latest batch of tests was conducted at the compact fuel element ...

NASA started loading the supercold fuel at around 7 a.m. Fueling the rocket has proved difficult for the launch teams that had to scrub liftoff attempts twice due to leaks on the liquid hydrogen ...

General Atomic's new nuclear fuel. Today, rockets heavily rely on chemical propulsion. Deep space probes like Voyager 1 and 2, meanwhile, ... most likely hydrogen.

Cap Marine says it will supply 8 MW of hydrogen fuel cell systems for four zero-emission vessels under construction for ...

(This wouldn't solve the issue of what that oxygen will ultimately oxidize to power a rocket. But oxygen is typically the heavier component of rocket fuel combinations—typically about 80 percent ...

As fuel and oxidiser are burned in the rocket's engines, helium fills the resulting empty space in the tanks, maintaining the overall pressure inside. Because it is non-reactive, it can safely ...