Diesel aircraft engines promise lower fuel burn and cheaper operating costs at a time when every gallon and every kilogram ...

The world's first hydrogen-fueled hypersonic jet may be able to reach a simply astounding speed of 12 times the speed of ...

That's because a ramjet operates on a different principle from a conventional jet engine. The kind of engines that power an airliner uses a series of fans and turbine impellers to draw in air and ...

The world’s heavy reliance on fossil fuels, especially for transportation, has left a deep mark on both the planet and public health. Burning these fuels releases a flood of greenhouse gases, which ...

Forbes contributors publish independent expert analyses and insights. I am a professor at Cal State LA and the technical director for the Hydrogen Research and Fueling Facility. We go for better ...