1972 In Science
The year 1972 in science and technology involved some significant events, listed below. Astronomy and space exploration * January 5 – President of the United States Richard Nixon orders the development of a Space Shuttle program. * February 4 – Mariner 9 sends pictures from Mars. * February 21 – The Soviet uncrewed spacecraft Luna 20 lands on the Moon. * March 2 – Launch of Pioneer 10 spacecraft. * April 16 – Apollo 16 launched. * June 30 – The International Time Bureau adds the first leap second to Coordinated Universal Time (UTC). * July 23 – The United States launches Landsat 1, the first Earth-resources satellite. * December 7 – Apollo 17 launched with three astronauts and five mice, and ''The Blue Marble'' photograph of the Earth is taken. * December 11 – NASA astronauts Eugene Cernan and Harrison Schmitt land on the Moon and begin a three-day exploration. Biology * February – S. J. Singer and Garth L. Nicolson describe the fluid mosaic model of ...
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