Artemis II's crew is preparing for a high-speed re-entry into Earth's atmosphere, a critical and dangerous phase of their mission. The Orion spacecraft's heat shield, which experienced issues on the uncrewed Artemis I mission, is under close watch as it faces extreme temperatures and pressure during its descent.Artemis II's crew is preparing for a high-speed re-entry into Earth's atmosphere, a critical and dangerous phase of their mission. The Orion spacecraft's heat shield, which experienced issues on the uncrewed Artemis I mission, is under close watch as it faces extreme temperatures and pressure during its descent.