Essex-class aircraft carrier and "Princeton" recovered the second crew to orbit the Moon, aboard Apollo 10, in May 1969. "Hornet" rejoined the program and recovered the astronauts from the first two moon landing missions, Apollo 11 in July 1969 and Apollo 12 in November. The first steps on Earth of returning astronauts Neil Armstrong, Buzz Aldrin, and Mike Collins, are marked on her hangar deck, as part of her Apollo program exhibit. The three subsequent missions utilized amphibious assault ships as support vessels; however, "Ticonderoga" recovered the astronauts of the last two moon missions, Apollo 16 and Apollo 17 in April and December
Yuri Gagarin during the period of the Soviet Union. The Air Force Academy was renamed Gagarin Air Force Academy in 1968. There is street in Warsaw called Yuri Gagarin Street. Gagarin has been honored on the Moon by both astronauts and astronomers. He was honored by the American space program during Apollo 11 in 1969 when astronauts Neil Armstrong and Buzz Aldrin left a memorial satchel containing medals commemorating Gagarin and fellow cosmonaut Vladimir Komarov on the surface. In 1971, Apollo 15 astronauts David Scott and James Irwin left the "Fallen Astronaut" at their landing site as a memorial to all the