NASA Artemis II / Orion "Mach 39" replica patch

The “Mach 39” patch celebrates the extraordinary speed achieved during NASA’s Artemis II mission, which sent four astronauts—Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—on a journey around the Moon aboard the Orion spacecraft. The patch referenced the blistering speeds Orion reached during its return to Earth, approximately Mach 39, as the spacecraft plunged back into Earth’s atmosphere. The patch also carries forward a tradition dating to the Space Shuttle era, when the iconic “Mach 25” patch commemorated the shuttle’s hypersonic return to Earth.