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Astronomy Object archive with linked event snippets and related articles.

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March 21 in Universe History: Space Missions, Satellites and Exploration

March 21, 2026
2019 On 21 March 2019 local time in French Guiana, Arianespace launched Vega from Europe’s Spaceport, delivering ASI’s PRISMA satellite to a sun-synchronous orbit. The AVUM stage performed two burns for injection and then executed a disposal burn for reentry, enabling hyperspectral imaging for environmental monitoring, agriculture, and pollution tracking.
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Alphonsus Arianespace ASI AsiaSat 3S Atlas-Agena AVUM Baikonur BOLT-2 BurstCube Cape Canaveral Cassini CRS-30 Dragon Drew Feustel Europe’s Spaceport Expedition 1 Expedition 55 Expedition 56 Falcon 9 French Guiana High Energy Solar Spectroscopic Imager Imaging Science Subsystem Ingenuity International Launch Services JPL Kennedy L4 Lagrange point Leonardo Marina Vasilevskaya Mars 1 MDIS Mercury MESSENGER Mid-Atlantic Regional Spaceport NASA Planetary Data System National Reconnaissance Office NROL-123 Oleg Artemyev Oleg Novitskiy OneWeb PDS4 Standards Reference Perseverance PRISMA Proton Ranger 9 Ricky Arnold Rocket Lab Electron Saturn Soyuz Flight ST28 Soyuz MS-08 SpaceX SPICE Starsem Terrier-Improved Malemute Titan Tracy Dyson Vega Wallops Wallops Island Asia Europe Russia Air Force Research Laboratory Earth Io Mars Moon International Space Station Space Shuttle Discovery STS-102

March 8 in Science History: Discoveries, Scientists and Breakthroughs

March 8, 2026
22. 1914 Yakov Zel’dovich is born on March 8, 1914. The Soviet physicist contributed to the nuclear program, astrophysics, and cosmology, with later work including the Sunyaev–Zeldovich effect and major advances in theoretical physics.
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Alvan Clark 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 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

March 9 in Science History: Discoveries, Scientists and Breakthroughs

March 9, 2025
1564 Johannes Fabricius is born on March 9, 1564. The German astronomer later produced some of the earliest telescopic observations of sunspots and helped demonstrate that the Sun rotates, helping overturn older ideas of celestial perfection.
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