The Apollo program included
a large number of uncrewed test missions and 11 crewed missions.
The 11 crewed missions include two Earth orbiting missions, two
lunar orbiting missions, a lunar swingby and six Moon landing missions.
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The Apollo program was
designed to land humans on the Moon and bring them safely back
to Earth. Six of the missions -- Apollos 11, 12, 14, 15, 16 and
17 -- achieved this goal. Lunar surface experiments included soil
mechanics, meteoroids, seismic, heat flow, lunar ranging, magnetic
fields and solar wind experiments.
Apollos 7, which tested
the Command Module, and 9, which tested both the Command Module
and Lunar Module, were Earth orbiting missions. Apollos 8 and
10 tested various components while orbiting the Moon, and returned
photography of the lunar surface. Apollo 13 did not land on the
lunar surface due to a malfunction, but during the brief orbit
around the Moon, the crew was able to collect photographs.
After the last lunar
landing, total funding for the Apollo program was about $19,408,134,000.
The budget allocation was 34 percent of the NASA budget.