A new jet engine design may mean that future flights will require no fuel, reducing costs and helping the environment. It might be several years, though.

The global reliance on fossil fuels, particularly in transportation, has severe consequences for the environment and public ...

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 ...

Chinese scientists suggest they’re bringing space plasma thrusters down to Earth, with a new kind that performs as well in the atmosphere as others do in the vacuum of space. Using just air and ...