The European Service Module (ESM) for NASA’s Artemis II mission is secured inside the FAST (final assembly and system testing) cell in the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on May 22, 2023. The ESM is in the FAST cell for final checkouts before it is stacked with the Orion crew module. Technicians are removing the crane that was used to move the ESM. The powerhouse that will fuel and propel Orion in space, the ESM will be used for Artemis II, the first Artemis mission flying crew aboard Orion.