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Impulse Space purchased three Falcon 9 launches from SpaceX for its Helios transfer vehicle for missions starting in 2026, including one mission for the U.S. Space Force.
On the mid-2026 mission, Helios will transport Impulse Space’s smaller Mira vehicle, carrying a commercial optical payload, from low Earth orbit to geostationary transfer orbit on the Victus Surgo mission for the Space Force and the Defense Innovation Unit.
Impulse Space signed a contract with SpaceX on 2024-11-14 for the Falcon 9 launches carrying Helios.
Impulse Space raised $150,000,000 in a Series B funding round on 2024-10-01 to support work on both Helios and Mira.
Each contracted Falcon 9 launch will carry Impulse Space’s Helios transfer vehicle, a high-energy kick stage introduced by Impulse Space in January 2024.
Impulse Space received a $34,500,000 contract on 2024-10-03 for the Victus Surgo mission and another mission called Victus Salo.
Impulse Space unveiled a developmental version of the Deneb engine on 2024-11-14 and indicated that tests of Deneb will begin soon.
The UMSR is expected to provide 662 seconds of specific impulse, compared to 841 seconds from NERVA, and higher than chemical propulsion alternatives.
Tamarack Global has allocated about a third of its $72,000,000 fund to investments, including support for Impulse Space’s $150,000,000 Series B investment round.
The National Reconnaissance Office signed agreements on 2024-10-30 with Cognitive Space, Impulse Space, and Starfish Space under the Broad Agency Announcements for Agile Launch Innovation and Strategic Technology Advancement program.
Impulse Space completed a $150,000,000 Series B investment round that included investment support from Tamarack Global.
The 19 HALO pool members are Airbus U.S. Space & Defense (Arlington, Virginia); Apex Technology, Inc. (Culver City, California); AST Space Mobile USA LLC (Midland, Texas); Astro Digital, U.S. Inc. (San Jose, California); Capella Space Corp. (San Francisco); CesiumAstro Inc. (Austin, Texas); Firefly Aerospace, Inc. (Cedar Park, Texas); Geneva Technologies Inc. (Monument, Colorado); Impulse Space, Inc. (Redondo Beach, California); Kepler Communications U.S. Inc. (Wilmington, Delaware); Kuiper Government Solutions (KGS) LLC (Arlington, Virginia); LeoStella LLC (Tukwila, Washington); Momentus Space (San Jose, California); Muon Space, Inc. (Mountain View, California); NovaWurks Inc. (Los Alamitos, California); Space Exploration Technologies Corps. (SpaceX) (Hawthorne, California); Turion Space Corp. (Irvine, California); Tyvak Nano-Satellite Systems, Inc. (Irvine, California); and York Space Systems LLC (Denver).
The zinc-fueled Hall Effect Thruster plus Benchmark chemical thruster integration provides an additional 15–25% total impulse or mission range compared with the electric-only option.
Impulse Space proposed adapting a version of a space tug developed for operating in Earth orbit to deliver small spacecraft or hosted payloads to Mars.
Impulso.Space signed a contract with Relativity Space to provide launch-related services.
The fuel/oxidizer pair significantly determines the specific impulse of a rocket engine.
High specific impulse combinations studied in the 1950s included hydrazine/fluorine, hydrogen/fluorine, and hydrogen/oxygen.
Specific impulse is a key parameter that measures the performance of a rocket engine and is proportional to the exhaust speed of the rocket.
Impulse Space launched the small transfer vehicle Mira in November as part of a mission called LEO Express-1 that successfully deployed a cubesat.
Impulse Space unveiled a larger vehicle called Helios designed to serve as a transfer stage to transport satellites from low Earth orbit to geostationary orbit in less than a day.