Scientists Just Tested a Thruster Powerful Enough for Human Missions to Mars

NASA researchers at the Jet Propulsion Laboratory have successfully tested a next-generation electric propulsion engine using lithium metal vapor fuel, setting a U.S. record of 120 kilowatts of power. This experimental thruster operates at temperatures up to 2,800 degrees Celsius and can save up to 90% of fuel compared to traditional chemical rockets. The technology is designed to significantly reduce transit time and fuel mass for future crewed space exploration missions, laying the groundwork for a human voyage to Mars.