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03/03/1959 Start of the Pioneer 4 probe


1959: Pioneer 4 (NASA)


Mission Profile - 1959-03-03 Pioneer 4


Pioneer 4 | Moon probe | Kerbal Space Program RSS/RO

NASA successfully launched unmanned spacecraft Pioneer 4. It was the first US probe to escape Earth's gravity. The mission goal was a lunar flyby. It was only a partial success. The probe passed the Moon at a distance about 60,000 km. it was twice the planned distance. After the flyby, the Pioneer 4 entered a heliocentric orbit.
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    • Essentials 

    • Spacecraft design 

    • Launching vehicle 

    • Mission