The International Association of Machinists and Aerospace Workers (IAM) announced on Apr. 2 that its union members have played a significant role in supporting NASA’s Artemis II mission, which is sending four astronauts on a fly-by journey around the Moon.
The involvement of IAM members highlights the critical contributions of skilled labor in major space exploration projects. Their work has been essential for building, processing, and maintaining key components of the Space Launch System (SLS) rocket and associated ground support equipment.
According to IAM, much of the SLS hardware draws from proven technology used during both the Apollo and Space Shuttle eras. The core stage features four RS-25D engines originally built by IAM Local 971 members in Florida. In addition, United Launch Alliance (ULA) workers represented by various IAM locals are responsible for manufacturing RL10 engines, processing rocket stages upon arrival in Florida, and managing transportation logistics from Decatur, Alabama to Port Canaveral.
Members from Local 2061 process hardware for Artemis missions under several contracts with companies such as Amentum and Astrion. Their responsibilities include transporting equipment to launch pads using crawler transporters and maintaining ground systems like escape mechanisms for astronaut safety. These workers also operate electrical systems, HVAC units, fire suppression systems, water sound suppression at launch pads, as well as handling hazardous materials needed during launches.
Further support comes from contracts with Herndon Solutions Group/InoMedic Health Applications through NEMCON for medical services and environmental testing at Kennedy Space Center. Local 2061 members ensure all gases and fuels meet specifications before use with Artemis vehicles. Additional teams assist U.S. Space Force range operations at both Eastern and Western Ranges under Amentum’s management.
As NASA continues its return to lunar exploration after more than five decades since Apollo missions, union labor remains an integral part of these historic efforts.
