Phase Four technician Josh Lopez integrates two Maxwell Block 1 top level assemblies during Phase Four's second production run. After integration, the engines moved to software acceptance testing.

Capella Space launched its fourth synthetic aperture radar satellite June 29 with a Maxwell electric thruster manufactured by propulsion startup Phase Four.

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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...