Moon by the Soviet Union's Luna 2, an unmanned spacecraft. The United States' NASA Apollo program achieved the only manned lunar missions to date, beginning with the first manned orbital mission by Apollo 8 in 1968, and six manned landings between 1969 and 1972, with the first being Apollo 11. These missions returned lunar rocks which have been used to develop a geological understanding of the Moon's origin, internal structure, and the Moon's later history. Since the Apollo 17 mission in 1972, the Moon has been visited only by unmanned spacecraft. Both the Moon's natural prominence in the earthly sky and
Fly Me to the Moon "Neon Genesis Evangelion" uses it for the closing music for each episode. Frank Sinatra's 1964 recording of "Fly Me to the Moon" became closely associated with NASA's Apollo space program. A copy of the song was played on the Apollo 10 mission which orbited the Moon. It became the first music heard on the Moon when played on a portable cassette player by Apollo 11 astronaut Buzz Aldrin after he stepped onto the Moon. The song’s association with Apollo 11 was reprised many years later when Diana Krall sang it at the mission's 40th anniversary commemoration ceremony. She also sang