Gemini South

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Accelerometer Albert Einstein Alphonsus Alvan Clark Ambient Light Sensor André Michaux Annalen der Physik Anne Stuart Arianespace Artemis II ASI AsiaSat 3S Atlas-Agena AVUM Baikonur Baikonur Cosmodrome Beatrice Shilling Bitstring Status List v1.0 Boeing BOLT-2 Breeze-M BurstCube C. Gordon Fullerton Cape Canaveral Cape Canaveral Air Force Station Cassini Cerro Pachón César Lattes Columbia Controlled Identifiers v1.0 COSE CRS-30 CSS Lists and Counters Module Level 3 CSS Namespaces Module Level 3 CSS Shapes Module Level 1 CSS Speech Module CSS Writing Modes Level 3 Data Integrity ECDSA Cryptosuites v1.0 Data Integrity EdDSA Cryptosuites v1.0 Delta II Dragon Drew Feustel Dumsat EchoStar XIV Edward C. Kendall Elise Deroche Emory Chaffee ESRO Europe’s Spaceport European Space Research Organisation Expedition 1 Expedition 55 Expedition 56 Falcon 9 Faroe Islands Fregat French Guiana Gemini South Generic Sensor API George A. Olah George Chrystal George K. Batchelor Global Positioning System Goodrich Acheson GPS IIR-11 Gregorio Y. Zara Gyroscope H. Aiken Herbert Kroemer High Energy Solar Spectroscopic Imager Hulusi Behçet Imaging Science Subsystem Ingenuity Input Events Level 2 International Launch Services ISO 14001 ISO 22095-2 ISO 22095-3 ISO 45001 ISO 9001 ISO/TR 8344 Jack R. Lousma James Dewar James Mason Crafts Jan Ernst Matzeliger Johannes Kepler John Elder John Fothergill JOSE Joseph Gall Josephine Cochrane JPL Julius Kahn Karl Ferdinand von Gräfe Karl von Goebel Kennedy Kennedy Space Center L4 Lagrange point Launch Pad 39B Leonardo Libby Riddles Long March-8 Magnetometer Manifest for Web Application Marina Vasilevskaya Mariner G Mars 1 Martin Davis MDIS Mercury MESSENGER Microsoft Mid-Atlantic Regional Spaceport Mir NASA NASA Planetary Data System National Reconnaissance Office NROL-123 Oleg Artemyev Oleg Novitskiy

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.