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- The first artificial Earth satellite, Sputnik 1, was launched by the Soviet Union on October 4, 1957. The first human to go into space, Yuri Gagarin, was launched, again by the Soviet Union, for a one-orbit journey around Earth on April 12, 1961. Within 10 years of that first human flight, American astronauts walked on the surface of the Moon.www.britannica.com/science/space-exploration/Major-milestones
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This is a timeline of space exploration which includes notable achievements, first accomplishments and milestones in humanity's exploration of outer space. This timeline generally does not distinguish achievements by a specific country or private company, as it considers humanity as a whole. See … See more
• Chronology of Space Exploration Archived 2017-05-25 at the Wayback Machine archive of important space exploration missions and events, including future planned and … See more
1900-01-01/1999-12-31Space exploration milestones and achievements1957-10-04/1959-01-03First artificial satellite, Sputnik 1, launched by the Soviet Union1961-04-12Yuri Gagarin becomes the first human to travel to space1969-07-20Apollo 11 lands on the Moon, Neil Armstrong becomes the first human to walk on the Moon1971-11-03Mariner 9 becomes the first spacecraft to orbit another planet, Mars1972-12-11/1972-12-14Apollo 17 lands on the Moon, the last human mission to the Moon1977-08-20Voyager 2 launched, the first spacecraft to study the outer Solar System1986-02-19Mir space station launched by the Soviet Union1990-04-24Hubble Space Telescope launched by NASA1997-11-07First successful landing on another planet, Mars, by Mars PathfinderWikipedia text under CC-BY-SA license WEBApr 11, 1970 · Space exploration remains one of the greatest technological advances in human history. Learn about the Apollo missions, the Space Shuttles Columbia and Challenger, Neil Armstrong and more.
WEBSpace exploration is the use of astronomy and space technology to explore outer space. While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is …
WEBDec 30, 2010 · As the first decade of the twenty-first century comes to a close what might we consider the ten most important events in space exploration and discovery?
WEBspace exploration, Investigation of the universe beyond Earth’s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. …
WEBSep 28, 2012 · Timeline: 50 Years of Spaceflight. On Oct. 4, 2007, the Space Age celebrated the 50th anniversary of the historic launch of Sputnik, the first artificial satellite, by the former Soviet Union....
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WEBThe United States first began developing its space program with high-altitude atmospheric sounding rockets, one of Goddard's early ideas. Later, a variety of medium- and long-range intercontinental ballistic missiles …
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