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On December 20, 2025, the Artemis II crew performed a countdown demonstration test at NASA’s Kennedy Space Center. Astronauts Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen practiced launch day procedures, including suiting up and boarding their Orion spacecraft atop the SLS rocket.
The image of this simulation was selected by NASA as one of the best photos of 2025. Part of the broader Artemis campaign, this mission marks a critical step toward returning humans to the Moon and eventually sending the first crewed missions to Mars.
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