The launch of explorer 1 marked the beginning of u s.
Explorer 1 satellite images.
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The jet propulsion laboratory in pasadena california which built the satellite.
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The still and video galleries here chart the development and launch of explorer 1 as well as the achievements of science in space over the past six decades.
Explorer 1 was the first satellite launched by the united states and was part of the u s.
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Historical imagery is sourced from microsoft and esri.
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Participation in the international geophysical year the mission followed the first two satellites the previous year.
Explorer 1 was launched on january 31 1958 at 22 48 eastern time february 1 03 48 utc.
Satellite was a joint project of the army ballistic missile agency in huntsville alabama which built the launch rocket.
Galleries explorer 1 images.
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A similar photograph is found in usa 3187 usps 1950s book.
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Explorer 1 as it would soon come to be called was america s first satellite.
The soviet union s sputnik 1 and 2 beginning the cold war space race between the two nations.
Explorer 1 became the first successfully launched satellite by the united states when it was sent to space on january 31 1958.
And the university of iowa where the science instruments were designed.
Spaceflight as well as the scientific exploration of space which led to a series of bold missions that have opened humanity s eyes to new wonders of the solar system said michael watkins current director of jpl.
A quick response to the soviet union s launch of sputnik 1 explorer 1 s success marked the beginning of the u s.
Explorer 1 the first u s.