Spacecraft propulsion

NASA’s NEXT ion thruster runs five and a half years nonstop to set new record
Rocket powered by nuclear fusion could send humans to Mars
NASA examines hybrid solar-electric propulsion for manned space missions
MIT-developed ‘microthrusters’ could propel small satellites
Mustafa’s Space Drive: An Egyptian Student’s Quantum Physics Invention
Zero-Emission Propulsion System for Boats – Now A Reality!
Startram – maglev train to low earth orbit