March 20 in Universe History: Space Missions, Astronomy and Exploration
March 20, 2026
2026
On March 20, 2026, NASA’s Artemis II Space Launch System rocket and Orion spacecraft arrived at Launch Pad 39B at Kennedy Space Center after crawler-transporter rollout from the Vehicle Assembly Building, positioning the first crewed Artemis stack for pad-level checkouts, systems verification, and launch-readiness work for a four-astronaut lunar flyby.
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