Within crew access arm’s reach The crew access arm (CAA) has been extended in this view of the mobile launcher on June 13, 2023. The CAA is the entry and exit point astronauts will use for access to the Orion spacecraft. Tests will be conducted to ensure the arm and supporting mobile launcher systems are certified to support crewed missions, including #Artemis II. This summer, workers will conduct swing tests of the arm to ensure it and supporting mobile launcher systems are certified to support crewed missions. In July, teams at NASAKennedy expect to complete the environmental control system at Launch Pad 39B, which provides air supply, thermal control, and pressurization to SLS and Orion. Engineers will demonstrate the system as part of the verification and validation testing. After the mobile launcher arrives at the launch pad, ground systems teams at Kennedy and the Artemis II crew will conduct a day of launch dry run, including operations for the crew, closeout crew, and the p...