March 20 in Universe History: Space Missions, Astronomy and Exploration
March 20, 2026
2000
On March 20, 2000, International Gemini Observatory announced that an 8.1-meter primary mirror had arrived safely at the Gemini South site on Cerro Pachón after a long transport. The mirror’s arrival marked a major step toward first light later in 2000, as the telescope approached operations with advanced optical and infrared imaging capabilities.
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