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Orion

Overview

Through Artemis, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and build the foundation for the first crewed missions to Mars. This bold endeavor began with the Artemis I mission, during which an uncrewed Orion traveled to a distant retrograde orbit around the Moon and returned to Earth after a 25-day period. A series of crewed missions will follow as NASA and its industry partners prepare for human missions to the vicinity of the Moon, and eventually to Mars.

Orion Sections
Image credit: NASA...

Key Features

1,000-Day Mission Capability: Orion provides maximum radiation protection for its crew, an advanced life support system, and a heat shield that withstands the extreme temperatures of re-entry into Earth's atmosphere.

Full Redundancy: Incorporated into the Orion spacecraft is backup capability for all major avionics and crew systems.

Safe Emergency Abort Capability: Orion has a rocket-powered escape system designed to whisk the crew to safety in the unlikely event of a launch vehicle failure.

OUR ROLE

Launch Abort System Jettison Motor: Orion is outfitted with a Launch Abort System (LAS) that will rapidly separate the crew capsule from the launch vehicle in the unlikely event of a catastrophic event during launch or ascent. L3Harris builds the jettison motor that provides approximately 40,000 pounds of thrust to separate the LAS from the crew module, enabling the capsule and crew to safely land under parachutes. During a nominal mission, the jettison motor activates after stage-two ignition to separate the LAS from the spacecraft as the crewmembers continue their journey. This critical task makes it the only motor on the LAS to fire on every mission.

Composite Overwrapped Pressure Vessels: After splashdown, Orion’s self-righting flotation system inflates five air bags with helium to maintain the capsule in an upright position, allowing the crew to safely exit the capsule through the hatch. The high-pressure helium is stored in five composite overwrapped pressure vessels (COPVs) produced by L3Harris’ subsidiary, ARDÉ. The Artemis I mission employed one nitrogen tank on Orion’s service module for cabin pressurization. Beginning with Artemis II, the first crewed Orion flight, ARDÉ is contracted to provide nitrogen and oxygen tanks for the spacecraft’s Environmental Control and Life Support System (ECLSS). Contracted through the fifth Artemis mission, these tanks will store the gasses needed to create a breathable atmosphere for astronauts in the crew module.

Latest News

LISA-Laser Interferometer Space Antenna

Press release | 10. 08. 2026

NASA Awards L3Harris Contract to Build All Glass Telescope for LISA Mission

L3Harris Technologies has been selected by NASA to design, assemble, integrate and test a telescope for the Laser Interferometer Space Antenna (LISA) mission.

LISA-Laser Interferometer Space Antenna

Press release | 10. 08. 2026

NASA Awards L3Harris Contract to Build All Glass Telescope for LISA Mission

Greg Burns, Director of Operations, L3Harris Canoga Park Site (L) and Pat O’Kelley, L3Harris Canoga Park Site Lead (R), discuss expansion plans.

Editorial | 10. 08. 2026

L3Harris Expanding Los Angeles Site to Increase Capacity for Precision Liquid Propulsion

Linear Cryocooler Models

Editorial | 10. 06. 2026

Keeping Critical Missions Cool: How Linear Cryocoolers Enable Advanced Technology

125 years logo

Editorial | 10. 01. 2026

A Legacy of Innovation: 125 Years on the Camden Waterfront

Construction progresses at L3Harris’ Arkansas Advanced Propulsion Facilities in Camden, Arkansas.

Editorial | 10. 01. 2026

Arkansas Advanced Propulsion Facilities Build-Out Accelerates

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