Artists impression of Terran 1 launch. Courtesy: Relativity Space

Momentus, the start-up planning to offer delivery services to other satellites from a low Earth orbit launch to GEO has now ordered a launch for its Vigoride Extended delivery tug.   The spacecraft which uses water plasma thruster propulsion will be carried into orbit by a Terran 1 launch vehicle operated by Relativity Space Inc. The launch order includes an option for five more flights.