Phase Four, a startup working on electric propulsion for satellites, has won an Air Force contract to test using an alternative propellant for its thrusters.
Apollo Fusion announced Jan. 26 it won an order from York Space Systems for a set of satellite electric propulsion systems.
Electric propulsion company Phase Four flew its first plasma thrusters on two spacecraft that were part of a SpaceX dedicated rideshare launch Jan. 24.
Orbion aims to eventually build and ship thrusters in six to eight days from receiving an order.
Morpheus Space is meeting with potential customers and raising money for electric propulsion technology the German startup recently demonstrated in orbit.