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

Instead of burning chemical propellant, a rocket would use a nuclear reactor to heat propellant – most likely hydrogen. The thermal energy generated by nuclear fission in that reactor would be ...

Rocket thrusters powered by the hydrogen and oxygen in water do exist, and while NASA succeeded with using this kind of propulsion system to launch their PTD-1 CubeSat in 2021, water fuel has not ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

Developed by Rosatom’s Troitsk Institute, the new technology could drastically reduce current space travel durations, which ...

At that point most American rockets were fuelled by liquid hydrogen, burned with liquid oxygen. Hydrogen is theoretically the best rocket fuel there is, but it’s very difficult to handle safely.

The sun will begin to die in about 5 billion years when it runs out of hydrogen. We asked physicist Frederick C. Bruhweiler a few frequently asked questions about the death of the sun and what it ...

The rocket, which uses hydrogen as fuel, has the potential to revolutionize spaceflight, but it is very early in its development phase and will likely take several years before it can be used for ...