Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.

With dwindling passenger car sales for hydrogen fuel cells, the technology is now looking like a non-starter for heavy-duty ...

Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 ...

A new test of nuclear propellant fuel under space-like conditions has been hailed as a success by NASA and General Atomics ...

Elon Musk's latest plan could revolutionize space travel—turning atmospheric CO2 into rocket fuel. Discover how this ...

First conceived of in 1945, this is a rocket that replaces burning chemical fuel with a nuclear reactor that is used to heat up a propellant. This propellant is most likely hydrogen, though ...

Today, rockets heavily rely on chemical propulsion ... test and demonstrate the survivability of fuel after thermal cycling in hydrogen representative temperatures and ramp rates,” Dr. Christina ...

© 2025 The Atlanta Journal-Constitution. All Rights Reserved. Hydrogen-powered semitrucks are now navigating roads along Georgia’s coast, ferrying supplies and ...

Rockets propelled by nuclear reactors ... to successfully test and demonstrate the survivability of fuel after thermal cycling in hydrogen representative temperatures and ramp rates," Christina ...