Work for Artemis II continues inside the Operations and Checkout building at NASA's Kennedy Space Center on Thursday, Feb. 1, 2024. Teams with Lockheed Martin and NASA are preparing the Orion spacecraft for vacuum testing this spring. Four astronauts will venture around the Moon in the Orion spacecraft on Artemis II, the first crewed mission on NASA's path to establishing a long-term presence at the Moon for science and exploration through the Artemis campaign.