// ORBITAL LOGISTICS AND PROPULSION TERM
Reaction Control
Reaction control involves using small thrusters to steer a spacecraft or change its orientation in space, especially where aerodynamic surfaces don't work.
TECHNICAL DEFINITION
Reaction control refers to the use of small, short-duration thrust impulses from reaction control system (RCS) thrusters to precisely adjust a spacecraft's attitude (orientation) or translational position in the vacuum of space.
BACKGROUND
Firefly Aerospace Blue Ghost, or simply Blue Ghost, is a class of lunar landers designed and manufactured by the American company Firefly Aerospace. Firefly builds and operates Blue Ghost landers to deliver small payloads to the surface of the Moon. The first Blue Ghost mission was launched in January, 2025. It successfully landed on the Moon on March 2, 2025. The landers are named after the firefly species Phausis reticulata, known as blue ghosts.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- attitude control
- RCS
- thruster control
- maneuvering thrusters
USAGE NOTE
Reaction control systems are essential for docking, orbital adjustments, and maintaining stable pointing for scientific instruments.
DEVELOPERS
Organizations developing technology related to Reaction Control.
A major developer and manufacturer of various propulsion systems, including monopropellant and bipropellant reaction control thrusters for satellites and spacecraft.
Designs and builds spacecraft and launch vehicles, integrating advanced reaction control systems for attitude stabilization, orbital maneuvers, and precision pointing.
Utilizes sophisticated reaction control systems with various thruster types (e.g., Draco, cold gas) for attitude control, maneuvering, and docking operations on its Dragon spacecraft and Starship launch vehicle.
Develops rocket engines and spacecraft, incorporating reaction control systems for precise attitude and trajectory adjustments during flight, ascent, and landing for vehicles like New Shepard and New Glenn.
A leading supplier of precision control components for space, including monopropellant and bipropellant thrusters, valves, and integrated reaction control system solutions for satellites and launch vehicles.
A prominent satellite manufacturer that develops and integrates sophisticated reaction control systems for its spacecraft to ensure accurate pointing, orbital station-keeping, and maneuvering capabilities.
Specializes in high-performance, non-toxic satellite propulsion systems, including thrusters used for reaction control, orbital maneuvering, and deorbiting.
A major aerospace company that develops and integrates reaction control systems for its diverse portfolio of satellites, space probes, and human exploration vehicles, essential for mission success and control.