08/21/2026
Kryptonite may weaken Superman, but real-life krypton fuel is giving our electric propulsion thrusters a “super” boost!
NASA Glenn engineers successfully tested two 12-kilowatt HERMeS Hall thrusters running side by side, a technique that future deep space spacecraft may use to accelerate faster. These are the same type of thrusters planned for the Space Reactor‑1 Freedom spacecraft’s journey to Mars.
Instead of the traditional xenon, the thrusters ran on krypton, which is more cost-effective for long-duration journeys but can be tougher on hardware. Researchers measured how the thrusters performed and how fast their parts wore down.
Thanks to magnetic shielding technology developed at Glenn, engineers significantly reduced krypton‑related wear-and-tear, extending the life of the thrusters enough to support round‑trip missions to Mars.
As the thrusters were moved closer together, researchers found they didn’t negatively affect each other, marking a major step forward for future NASA electric propulsion spacecraft. More: https://go.nasa.gov/4eCmovY
📸: NASA