Iodine Propulsion Systems Take Flight in Space

Right now, there is a unique spacecraft orbiting our planet. Its secret is the iodine propellant it uses to maneuver in space.

The spacecraft, launched in 2020, is a type of miniaturized satellite called a CubeSat, weighing about 45 pounds (20 kilograms), and it's the first satellite to use iodine to convert electrical energy to ion propulsion.

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