
Bremen
German city; home of Airbus Defence and Space facility that built the Orion European Service Module.
Last refreshed: 14 April 2026
Why has Airbus Bremen stayed silent on ESM anomalies three days after Artemis II splashdown?
Timeline for Bremen
Mentioned in: Three Orion reworks named in one call
Artemis II Moon MissionMentioned in: ESA routes ESM review to June Council
Artemis II Moon Mission- Where was the Orion service module built?
- The European Service Module (ESM) for Orion was built by Airbus Defence and Space at its space systems facility in Bremen, Germany.
- Did the Artemis II service module have problems?
- Yes. NASA disclosed at the post-splashdown press conference that ESM propellant valve leaks occurred during the mission and would require redesign before Artemis III. Airbus and ESA in Bremen issued no public statement as of 14 April 2026.Source: NASA post-splashdown press conference, 11 April 2026
- What does the European Service Module do on Orion?
- The ESM provides Orion with propulsion, electrical power, water, and oxygen. It was developed and built by Airbus Defence and Space in Bremen under ESA contract as Europe's main contribution to the Artemis programme.
Background
Bremen is a port city and federal state in north-west Germany, and the home of Airbus Defence and Space's space systems division. The European Service Module (ESM) for NASA's Orion spacecraft was designed, assembled, and tested at the Airbus facility in Bremen before shipment to the United States. Three days after Artemis II's splashdown, ESA and Airbus had issued no public statement on the module's in-flight performance, leaving open questions about the ESM propellant valve leaks disclosed at NASA's post-mission press conference .
Bremen has been Germany's space manufacturing hub since the 1960s. The city hosts the Airbus site that built the Columbus laboratory module for the International Space Station and currently employs thousands of engineers in civil and defence space programmes. The ESM work in Bremen represents Europe's primary contribution to the Artemis programme: a propulsion and power module that supplies Orion with fuel, electricity, water, and oxygen.
The silence from Bremen after Artemis II is notable because the ESM accumulated several anomalies during the ten-day flight, including valve leaks that NASA said would require redesign before Artemis III. How Airbus and ESA characterise those issues, and whether Bremen's workforce continues into subsequent Artemis modules, depends partly on what the post-mission engineering review reveals .