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Recent News

Phase Four’s spacecraft engine first to demo AFRL’s game-changing ‘green’ fuel

By Phase Four | November 4, 2022
The plasma glow created by Phase Four’s novel RF spacecraft engine firing on AFRL’s “green” propellant.

Former NASA administrator Jim Bridenstine told Breaking Defense that Phase Four has the potential to “disrupt the in-space propulsion market,” and its technology “is important for the country.”

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Phase Four Unveils Game Changing Engine for LEO Constellations

By Phase Four | October 13, 2022 | 0

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

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Phase Four adopts iodine for next-gen Max-V engine

By Phase Four | October 13, 2022 | 0

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

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Jim Bridenstine, Former NASA Administrator, joins Phase Four’s Board of Directors

By Phase Four | September 2, 2022
A Maxwell Block 2 engine undergoing environmental testing at Phase Four

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

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Former NASA administrator joins board of spacecraft propulsion startup Phase Four

By Phase Four | September 1, 2022
Jim Bridenstine

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

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Phase Four and Impulse Space to Collaborate on Multi-Mode Propulsion

By Phase Four | June 8, 2022 | 0
Phase Four's RF Thruster operating on a nitrogen-oxygen blend

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.

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Maxwell Block 2: Updated ICD & Pricing

By Phase Four | June 1, 2022 | 0

Phase Four has just released the updated ICD rev B of our Maxwell Block 2 engine. Please reach out to us directly in order to download the document.

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Phase Four to expand engine manufacturing capacity in 2022

By Phase Four | May 23, 2022 | 0

Phase Four is building out a new 23,000 sq.ft. production facility to support high volume plasma propulsion engine manufacturing.

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Exclusive: Phase Four Inks Deal to Scale Production

By Phase Four | May 20, 2022 | 0

El Segundo-based Phase Four today finalized a lease to build a second factory and scale production of its Maxwell engine product line. The new Hawthorne facility will be over 3X larger than Phase Four’s current plant, and capable of cranking out 100 engines a year.

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Opinion: Make The U.S. Electric Propulsion Supply Chain More Secure

By Phase Four | April 22, 2022 | 0

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

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