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Muon Space Adds $90 Million In Funding Round; Acquires Spacecraft Propulsion Startup

By Cal Biesecker

Thursday, June 12th, 2025

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Muon Space Adds $90 Million In Funding Round; Acquires Spacecraft Propulsion Startup

Starlight Engine Hall-effect thruster. Photo: Muon Space

Satellite developer and manufacturer Muon Space on Thursday said it has closed an oversubscribed $89.5 million Series B1 funding round, bringing its total Series B round to $146 million as it continues to scale operations. The Silicon Valley-based company also said it has acquired propulsion startup Starlight Engines, which it said is developing the first commercially available solid propellant Hall-effect thruster, adding an in-house propulsion capability as it vertically integrates its Halo satellite platform. The company said integration of Starlight’s…

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