Phase Four’s Maxwell engines deliver high end plasma performance with novel high duty cycle operations

Phase Four’s propellant-agnostic RF Thruster is poised to enable new ‘multi-mode’ propulsion capabilities on government and commercial spacecraft.

RFT also possesses a second silver bullet: the power electronics are much simpler than legacy EP systems, making them highly compact, and significantly lighter.

Phase Four’s flight proven electric propulsion systems dramatically reduce costs and lead times for satellite constellation manufacturing and deployment

Capella Space launched its fourth synthetic aperture radar satellite June 30 with a Maxwell electric thruster manufactured by propulsion startup Phase Four.

Phase Four announced that a Maxwell engine was launched onboard a Capella Space SAR satellite on the SpaceX Transporter-2 dedicated rideshare launch on June 30th. This marks the company’s fourth engine sent to space with Capella since January 24th of 2021.

Phase Four announced June 16 two new electric propulsion systems that offer performance and other improvements, along with a subscription service that offers those thrusters to customers at a discount.

Phase Four, the creator of the radio-frequency thruster for satellite propulsion, announced today that it has closed a Series B investment round of $26 million. The round was led by New Science Ventures LLC (“NSV”), a leading venture capital firm focused on building companies that leverage breakthrough science to create extraordinary value.

Phase Four announced April 8 it received a $750,000 Phase 2 Small Business Innovation Research (SBIR) award from the U.S. Air Force’s AFWERX program to test using iodine as a propellant in the company’s Maxwell electric thrusters. The award will fund work on a prototype version of that thruster.