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Sputnik 1
The first man-made object, sputnik 1, was lunch by U.S.S.R to orbit the Earth and stayed in orbit until January 4,1958. -
Period: to
1957-1980
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Sputnik 2 & Laika
Sputnik 2, carried the dog Laika on an orbit for 7 days. Lunched by the U.S.S.R. Laika was the first living creature to enter orbit. -
Explorer 1
The first U.S. satellite in orbit, carried a scientific experiment of James A. Van Allen. Discovered the Earth's radiation belt. -
Explorer 2
Explorer 2 was lunched by Cape Canaveral Air Force Station LC-26A. Explorer 2 was a repeat of Explorer 1's mission but failed to reach orbit due to failure in the rockets during the lunch. -
Vanguard 1
Vanguard 1 was a satellite designed to test the launch capabilities of a three-stage launch vehicle and the effects of the environment on a satellite and its systems in Earth's orbit. -
Sputnik 3
A research satellite to explore the upper atmosphere and the near space. Was lunched by the U.S.S.R. -
Pioneer 1
Lunch at LC-17A. Failed to reach the moon but returned with 43 hours of data about the near-Earth space environment. -
Luna 1
Lunch by the U.S.S.R., first man-made satellite to orbit the moon. -
Pioneer 4
Pioneer 4 achieved its primary objective (an Earth-Moon trajectory), returned radiation data and provided a valuable tracking exercise. Lunched by U.S. -
Luna 2
The first man-made object to hit the moon. Lunched by the Soviet Union's Luna programme. -
Luna 3
Luna 3 a translunar satellite, orbited the moon and photographed 70 percent of the far side of the moon. -
Tiros 1
First sucessful satellite, lunched by the U.S. -
Corona Spy Satellite
Discoverer XIV launches the first U.S. camera-equipped Corona spy satellite. -
Vostok 1
Vostok 1 is launched by the U.S.S.R., carrying Cosmonaut Yuri A. Gargarin, the first man in space. He orbits the Earth once. -
Mercury Freedom 7
Lunched by the U.S. Mercury Freedom 7 carried Alan B. Shepard,Jr., the first U.S. Astronaut into space
