This July 20, 1969 file photo shows US Astronaut Edwin E. Aldrin, Jr., lunar module pilot of the first lunar landing mission, as he poses for a photograph beside the deployed United States flag during Apollo 11 Extravehicular Activity (EVA) on the lunar surface area called the Sea of Tranquility. The Lunar Module (LM) is on the left, and the footprints of the astronauts are clearly visible in the soil of the Moon. On July 16, 1969, NASA astronauts Neil Armstrong, Buzz Aldrin and Michael Collins launched toward the moon atop a Saturn V rocket. Four days later, on July 20, Armstrong and Aldrin landed their Eagle lander at Tranquility Base on the moon as Collins remained in orbit aboard the command module. The 45 year anniversary of the landing will be marked on July 20, 2014.