Recent News

Leveraging its new Block 2 architecture, Phase Four announces Max-V, a revolutionary plasma propulsion system available in 2023

Propulsion startup Phase Four is expanding its Maxwell plasma propulsion line by offering Max-V, an iodine-fueled engine.

Bridenstine brings a wealth of industry experience and a commitment to space sustainability

Former NASA Administrator Jim Bridenstine joined the board of directors of spacecraft propulsion startup Phase Four, the company told CNBC.

Phase Four, the creator of the radio-frequency thruster (RF Thruster) for satellite propulsion, announced today that it has signed a memorandum of understanding with Impulse Space, a Space 2.0 pioneer providing agile, economical last-mile space payload delivery capabilities.

For most of the last decade, the U.S. relied almost entirely on Russia for rocket engines and crewed launches into space.

Phase Four expands its leadership team to support the company’s rapid growth in both the commercial and government markets.

Phase Four won a Defense Advanced Research Projects Agency contract to demonstrate the California startup’s radio frequency thruster technology with a new propellant

The Company will adapt its versatile radio-frequency thruster to operate on novel, low cost propellants.

Propulsion startup Phase Four has signed a memorandum of understanding with satellite refueling startup Orbit Fab aimed at preparing future Phase Four Maxwell engines for on-orbit refueling.