A series of space flights undertaken by the United States with a goal of landing a man on the moon. Each Apollo flight carried a crew of three astronauts. The first lunar landing by humans was achieved by Apollo 11 on July 20, 1969. Five other successful lunar landings followed. The Apollo program ended in 1974. It was named after the Greek god of learning, Apollo.
Note: Neil Armstrong was the first man to set foot on the moon.
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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| the offspring of a zebra and a donkey. |
| apollo program | |
noun | |
| a program of space flights undertaken by US to land a man on the Moon; "the first lunar landing was achieved by the Apollo program on July 20, 1969" |