The Push — In-Space Propulsion · The Orbital Stack — Space
LHX
L3Harris Technologiesloading…
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Owns Aerojet Rocketdyne — dominant US chemical & electric in-space propulsion, plus SRMs
What they do
L3Harris absorbed the dominant US chemical propulsion supplier in 2023 — engines on the Centaur upper stage, in-space attitude-control thrusters on most NASA missions, the RS-25 SSME for SLS, and solid rocket motors for missile-defense interceptors . Aerojet's electric propulsion (XR-5 Hall thrusters) is a primary candidate for proliferated-LEO. L3Harris is also a prime on multiple PWSA tranches.