Before the Orion spacecraft is stacked atop NASA’s powerful SLS (Space Launch System) rocket ahead of the Artemis II mission, engineers will put it through a series of rigorous tests to ensure it is ready for lunar flight. In preparation for testing, teams at the agency’s Kennedy Space Center in Florida have made significant upgrades to the altitude chamber where testing will occur. Several of the tests take place inside one of two altitude chambers in the high bay of the Neil A. Armstrong Operations and Checkout (O&C) Building at Kennedy. These tests, which began on April 10, include checking…