Benchmark metal plasma thruster fires all four engines in sequence during vacuum chamber tests. Credit: Benchmark Space Systems

Benchmark Space Systems announced contracts to sell around two dozen metal plasma thrusters based on technology the Burlington, Vermont-based startup acquired last year.

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Debra Werner is a correspondent for SpaceNews based in San Francisco. Debra earned a bachelor’s degree in communications from the University of California, Berkeley, and a master’s degree in Journalism from Northwestern University. She is a recipient...