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  2. Explorer 1 - Wikipedia

    en.wikipedia.org/wiki/Explorer_1

    Explorer 1 was the first of the long-running Explorers program. Four follow-up satellites of the Explorer series were launched by the Juno I launch vehicle in 1958. Of these, Explorer 3 and 4 were successful, while Explorer 2 and 5 failed to reach orbit. The final flight of the Juno I booster, the satellite Beacon-1, also failed. [22]

  3. Timeline of artificial satellites and space probes - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_artificial...

    First Canadian satellite (on American rocket), first satellite not constructed by the US or USSR October 2 US: Explorer 14 (EPE-B) Thor-Delta A: Earth Success NASA spacecraft instrumented to measure cosmic-ray particles, trapped particles, solar wind protons, and magnetospheric and interplanetary magnetic fields. October 18 US: Ranger 5: Atlas ...

  4. History of spaceflight - Wikipedia

    en.wikipedia.org/wiki/History_of_spaceflight

    Explorer 1 satellite, the third Satellite put into orbit, and the first by NASA. On November 3, 1957, the Soviet Union launched the second satellite, Sputnik 2, and the first to carry a living animal into orbit, a dog named Laika.

  5. SCORE (satellite) - Wikipedia

    en.wikipedia.org/wiki/SCORE_(satellite)

    The message recorded of Eisenhower.. SCORE (Signal Communications by Orbiting Relay Equipment) was the world's first purpose-built communications satellite.Launched aboard an American Atlas rocket on December 18, 1958, SCORE provided the second test of a communications relay system in space (the first having been provided by the USAF/NASA's Pioneer 1), [3] the first broadcast of a human voice ...

  6. List of communications satellite firsts - Wikipedia

    en.wikipedia.org/wiki/List_of_communications...

    Satellite First Launched Polity Sputnik 1: First satellite with radio transmitter [1] October 4, 1957 Soviet Union: Project SCORE: First communications satellite [1] First test of a space communications relay system First (recorded) voice transmission (U.S. President Dwight Eisenhower) December 18, 1958 United States: TIROS-1

  7. Explorers Program - Wikipedia

    en.wikipedia.org/wiki/Explorers_Program

    Explorer 1 was launched on the Juno I on 1 February 1958, becoming the first U.S. satellite, as well as discovering the Van Allen radiation belt. Four follow-up satellites of the Explorer series were launched by the Juno I launch vehicle in 1958, of which Explorer 3 and Explorer 4 were successful, while Explorer 2 and Explorer 5 failed to reach ...

  8. Timeline of first orbital launches by country - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_first_orbital...

    Italy with the first successful launch from the San Marco platform of its satellite San Marco 2 on 26 April 1967 by US Scout B (the first Italian satellite is San Marco 1 launched by another Scout from Wallops, USA on 15 December 1964). The last orbital launch from San Marco was on 25 March 1988 by US Scout G-1 and there are no further launches ...

  9. Skylab - Wikipedia

    en.wikipedia.org/wiki/Skylab

    Skylab was the United States' first space station, launched by NASA, [3] occupied for about 24 weeks between May 1973 and February 1974. It was operated by three trios of astronaut crews: Skylab 2, Skylab 3, and Skylab 4.