In one of the most famous photographs of the 20th Century, Apollo 11 astronaut Buzz Aldrin walks on the surface of the moon near the leg of the lunar module Eagle. Apollo 11 Commander Neil Armstrong took this photograph with a 70mm lunar surface camera. Armstrong and Aldrin explored the Sea of Tranquility for two and a half hours while crewmate Michael Collins orbited above in the command module Columbia.

As the world remembers the thrilling Apollo 11 mission 40 years later, NASA's newVision calls for a return to the moon, followed by journeys of discovery to Mars and beyond.