Costa Rica's Radical Rocket

Getting to Mars' or anywhere else in the solar system-may be easier with Ad Astra Rocket Co.'s plasma thruster

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Photo: Randi Silberman
BEAT THE HEAT: At Ad Astra’s Costa Rican facility, the thruster is attached to the end of a vacuum chamber. Magnets surrounding the thruster produce magnetic fields to wrap around the hot plasma and protect the thruster’s walls from melting. When the thruster is running, a plasma beam is vented into the vacuum chamber.
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