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.

In the relentless quest to make journeys to Mars shorter and safer, Russian scientists have recently turned heads with a bold claim: A plasma-based propulsion system could cut the Earth–Mars transit ...

Something to look forward to: Scientists have created a laboratory prototype of a plasma electric rocket engine that could revolutionize space travel. Based on a magnetic plasma accelerator, this ...