Footprint - Apollo 11

A close-up view of an astronaut's bootprint in the lunar soil, photographed with a 70mm lunar surface camera during the Apollo 11 extravehicular activity (EVA) on the moon.

While astronauts Neil A. Armstrong, commander, and Edwin E. Aldrin Jr., lunar module pilot, descended in the Lunar Module (LM) "Eagle" to explore the Sea of Tranquility region of the moon, astronaut Michael Collins, command module pilot, remained with the Command and Service Modules (CSM) "Columbia" in lunar orbit.

The National Aeronautics and Space Administration (NASA)  is an independent agency of the United States Federal Government responsible for the civilian space program, as well as aeronautics and aerospace research.

The Apollo program, also known as Project Apollo, was the third United States human spaceflight program carried out by the National Aeronautics and Space Administration, which succeeded in landing the first humans on the Moon from 1969 to 1972.

PS : Note that those artworks are not printed in Limited Edition.