Model of the Pioneer 4 space probe in front of a map of its trajectory. Pioneer 4 launched on 3rd March 1959 on a mission to photograph the Moon during a close fly-by. It didnt achieve this goal as a longer than planned burn of the second stage engine set it on a trajectory that was too far from the lunar surface. However Pioneer 4 did become the first US spacecraft to leave Earths orbit. After passing the Moon, Pioneer 4 went into a heliocentric orbit.
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Creative#:
TOP29679030
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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no
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Editorial use only