Phase Four LLC, a startup based in El Segundo, California, announced plans March 7 to conduct the first on-orbit demonstration of its plasma propulsion technology in late 2017.

This post is only available to members.

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...