The Artemis II mission, which launched on April 1, 2026, marked the first time human beings had travelled to the Moon since Apollo 17 in December 1972 — a gap of 54 years. The four-person crew consisted of Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialists Christina Koch and Jeremy Hansen, making Hansen the first Canadian astronaut to travel beyond low Earth orbit. The Space Launch System (SLS) Block 1 rocket, generating 8.8 million pounds of thrust at liftoff, propelled the Orion spacecraft on a free-return trajectory around the Moon before the crew splashed down on April 10, 2026, completing a 10-day mission. The mission validated the integrated SLS and Orion stack under genuine crewed conditions for the first time. Orion reached distances exceeding 370,000 kilometres from Earth — farther than any crewed spacecraft since Apollo — and the crew experienced speeds approaching 39,000 kilometres per hour during trans-lunar injection. The life-support systems, communication arrays, and re-entry heat shield all performed within design parameters, clearing the path for Artemis III, which will attempt the first crewed lunar surface landing since 1972. Beyond the engineering validation, Artemis II carried 18 experiments studying crew physiology, radiation exposure, and the behaviour of materials in deep space. The mission also tested the Lunar Communications Relay Unit, a high-bandwidth data link designed to support surface operations in subsequent missions. Victor Glover became the first African American to travel beyond Earth orbit, a milestone with broad public significance. The mission cost approximately $4.1 billion, drawing criticism from some quarters, but its successful completion unlocked funding authorisation for Artemis III through V, representing the single most consequential gate in NASA's 21st-century exploration strategy.
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