Alvan Clark

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March 8 in Science History: Discoveries, Scientists and Breakthroughs

March 8, 2026
6. 1804 Alvan Clark is born on March 8, 1804. The American astronomer and telescope maker helped build world-class refractors and discovered Sirius B in 1862 while testing optics, proving the precision and scientific value of his instruments.
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André Michaux Beatrice Shilling César Lattes Edward C. Kendall Emory Chaffee George A. Olah George Chrystal George K. Batchelor Gregorio Y. Zara Herbert Kroemer Hulusi Behçet James Mason Crafts Johannes Kepler John Elder John Fothergill Josephine Cochrane Julius Kahn Karl Ferdinand von Gräfe Karl von Goebel Martin Davis Otto Hahn Piotr Lebedev Ralph H. Baer Sir Michael Foster Sir William Stirling Hamilton Yakov Zel’dovich Beijing China Easter Island Japan North America Rome Russia United Kingdom United States Cambridge’s Physiology Department Harmonices Mundi Halley’s Comet Io Jupiter Moon Sirius B Sun Nuclear Fission Compact Disc Dishwasher Kerosene Lamp Magnavox Odyssey Videophone Friedel–Crafts Reaction Neutrino Mixing Angle Theta-13 Sunyaev–Zeldovich Effect Third Law of Planetary Motion Daya Bay Reactor Neutrino Experiment International Space Station Space Shuttle Discovery STS-102 Voyager 1