Impulse Space, founded in 2021 by ex-SpaceX engineer Tom Mueller, is an in-space transportation company and space tug provider. It develops orbital transfer vehicles like Mira and Helios to move satellites and payloads from LEO to other orbits, including GEO, lunar, and Martian destinations. Impulse Space has partnered with companies like Relativity Space, Exolaunch, and Anduril, and was selected by NASA as a launch service provider under the VADR contract.
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The RD-0124A rocket engine has a specific impulse of 359 seconds.
Ariel achieved a vacuum specific impulse (Isp) greater than 178 seconds.
Samara’s flight experiment on the Mira spacecraft has powered on and is awaiting its turn among Impulse Space customers to run the experiment and achieve flight-proven status.
Impulse Space conducted a fully autonomous rendezvous and proximity operations (RPO) mission using their LEO Express 2 Mira.
RDREs provide efficient combustion by leveraging a supersonic detonation wave and offer a 10-15% improvement in specific impulse over conventional rocket engines.
Mira made contact using new, Impulse-built radios after separation from the launch vehicle.
The Remora mission has been completed by Starfish Space and Impulse Space.
The mission showcased Impulse’s precise maneuvering capabilities.
The mission was conducted using Impulse’s Mira spacecraft during the Impulse LEO Express 2 mission.
Starfish’s payloads enabled the Mira spacecraft to perform close-proximity maneuvers with another Impulse Mira spacecraft.
Impulse’s Mira spacecraft is equipped with eight onboard Saiph thrusters offering a total of 176 N of thrust.
On December 15, 2025, Starfish Space and Impulse Space successfully completed an autonomous rendezvous and proximity operation demonstration mission called 'Remora' in low Earth orbit.
The mission utilized Impulse Space's orbital transportation vehicle, Mira, with a lightweight camera from Starfish Space for autonomous maneuvering.
The PBH-100 Hall Thruster is designed for satellites weighing between 50 to 200 kilograms and can achieve high thrust and high specific impulse.
Starfish Space and Impulse Space conducted an RPO demo in orbit, bringing spacecraft to within 1,250 meters of each other autonomously.
Impulse’s Mira spacecraft launched on January 14, 2023, aboard SpaceX’s Transporter-12 mission.
Each first-generation Qianfan satellite uses a krypton-fueled electric Hall-effect thruster that generates 20 millinewtons of thrust and has a specific impulse of 1,385 seconds.
Each first-generation Qianfan satellite uses an electric Hall-effect thruster burning krypton that generates 20 millinewtons of thrust with a specific impulse of 1,385 seconds for orbital maneuvering.
Impulse Space’s Mira serves as a high-thrust platform for commercial and national security missions.
The PRM9104 successfully dispensed Impulse Space’s Mira spacecraft from the launch vehicle’s upper stage during the Transporter-15 rideshare mission.