From the Moon to the Earth

Explanation: After the most famous voyage of modern times, it was time to go home. After proving that humanity has the ability to go beyond the confines of planet Earth , the first humans to walk on another world -- Neil Armstrong and Buzz Aldrin -- flew the ascent stage of their Lunar Module back to meet Michael Collins in the moon-orbiting Command and Service Module . Pictured above on 1969 July 21, the ascending spaceship was captured by Collins making its approach , with the Moon below, and Earth far in the distance. Tomorrow marks the 40th anniversary of the first human moon landing . Recently, NASA's moon-orbiting Lunar Reconnaissance Orbiter sent back the first pictures of most of the Apollo landing sites -- including Apollo 11 -- with enough resolution to see the Lunar Module descent stages left behind.