Read the excerpt from Moon Mission.
Which central idea is best supported by the excerpt details?
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People first set foot on the moon on July 20, 1969.
Astronauts Neil Armstrong and Buzz Aldrin stepped from the
Apollo 11 spacecraft and planted an American flag on the
moon's rocky surface. Six NASA lunar missions followed
over the next few years, and 10 more astronauts walked the
lunar surface. Then the United States government stopped
funding such missions. NASA hasn't sent a crew to the
moon since 1972.
The United States government was afraid to try to send
people into space.
NASA determined it was less expensive to send satellites
to the moon instead of people.
America marked possession of the territory of the moon
by placing an American flag there.
Lunar missions were strong for a few years until NASA
ran out of money to support them.