Orion is a class of partially reusable space capsules to be used in NASA's human spaceflight programs.
The spacecraft consists of a Crew Module (CM) manufactured by Lockheed Martin and the European Service Module (ESM) manufactured by Airbus Defence and Space.
Capable of supporting a crew of six beyond low Earth orbit, Orion can last up to 21 days undocked and up to six months docked.
It is equipped with solar panels, an automated docking system, and glass cockpit interfaces modeled after those used in the Boeing 787 Dreamliner.
A single AJ10 engine provides the spacecraft's primary propulsion, while eight R-4D-11 engines, and six pods of custom reaction control system engines developed by Airbus, provide the spacecraft's secondary propulsion.
Although compatible with other launch vehicles, Orion is primarily designed to launch atop a Space Launch System (SLS) rocket, with a tower launch escape system.

The Orion MPCV was announced by NASA on May 24, 2011.
Its design is based on the Crew Exploration Vehicle from the cancelled Constellation program, which had been a 2006 NASA contract award to Lockheed Martin.
The command module is being built by Lockheed Martin at the Michoud Assembly Facility, while the Orion service module is being built by Airbus Defence and Space with funding from the European Space Agency.

By May 2020, the ESA had signed an agreements with NASA to provide three service modules for Artemis as part of its barter arrangement with NASA to be a member of the Artemis program.
 The ESMs cost approximately €250 million each to acquire from Airbus, not counting the costs incurred by the ESA directly.
 The third ESM is slated to fly in 2024.
Orion is a class of partially reusable space capsules to be used in NASA's human spaceflight programs. The spacecraft consists of a Crew Module (CM) manufactured by Lockheed Martin and the European Service Module (ESM) manufactured by Airbus Defence and Space. Capable of supporting a crew of six beyond low Earth orbit, Orion can last up to 21 days undocked and up to six months docked. It is equipped with solar panels, an automated docking system, and glass cockpit interfaces modeled after those used in the Boeing 787 Dreamliner. A single AJ10 engine provides the spacecraft's primary propulsion, while eight R-4D-11 engines, and six pods of custom reaction control system engines developed by Airbus, provide the spacecraft's secondary propulsion. Although compatible with other launch vehicles, Orion is primarily designed to launch atop a Space Launch System (SLS) rocket, with a tower launch escape system.
The Orion MPCV was announced by NASA on May 24, 2011. Its design is based on the Crew Exploration Vehicle from the cancelled Constellation program, which had been a 2006 NASA contract award to Lockheed Martin. The command module is being built by Lockheed Martin at the Michoud Assembly Facility, while the Orion service module is being built by Airbus Defence and Space with funding from the European Space Agency.
By May 2020, the ESA had signed an agreements with NASA to provide three service modules for Artemis as part of its barter arrangement with NASA to be a member of the Artemis program.  The ESMs cost approximately €250 million each to acquire from Airbus, not counting the costs incurred by the ESA directly.  The third ESM is slated to fly in 2024.
Artemis program