This image shows the test firing of ExoTerra Resources' xenon fueled microsatellite thruster.

SAN FRANCISCO — Colorado-based ExoTerra Resources has supplied York Space Systems with 21 propulsion modules for the Space Development Agency (SDA) Transport Layer. After raising money to expand staff and facilities, ExoTerra reached its goal of delivering 15 Iris250 propulsion modules in one month. “We understand the importance of scaling propulsion production for SDA and […]

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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...