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The year 1973 in science and technology involved one significant event, listed below. ==Astronomy and space exploration== * March 7 – Comet Kohoutek is discovered * April 6 – Launch of Pioneer 11 spacecraft * May 14 – ''Skylab'', the United States' first space station, is launched. * Solar eclipse of June 30, 1973 – Very long total solar eclipse visible in NE South America, the Atlantic, and central Africa. During the entire Second Millennium, only seven total solar eclipses exceed seven minutes of totality; this is the last. Observers aboard a Concorde jet are able to stretch totality to about 74 minutes by flying along the path of the moon's umbra. * July 25 – Soviet Mars 5 space probe launched. * November 3 – Mariner program: NASA launches the Mariner 10 toward Mercury (on March 29, 1974 it became the first space probe to reach that planet). * December 3 – Pioneer program: Pioneer 10 sends back the first close-up images of Jupiter. * December 7 – The "Big Ear" at the Ohio State University Radio Observatory begins a full-time search for extraterrestrial intelligence (SETI) radio survey, running continuously until 1995. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「1973 in science」の詳細全文を読む スポンサード リンク
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