Lithium-Powered Thruster Sets US Record, Advancing Crewed Mars Missions
NASA’s next‑gen electric propulsion thruster using lithium metal vapor set a US power record at 120 kilowatts, signaling major progress toward fuel‑efficient, long‑duration missions to Mars. While such systems could drastically cut propellant needs and enable faster transit, a crewed Mars mission would still demand multi‑megawatt power and thousands of hours of operation to manage cruise and surface phases, underscoring both promise and engineering challenges for future deep‑space travel.