In one of the greatest technological feats of human history, on July 20, 1969, two men landed on the surface of the Moon to explore it’s “magnificent desolation.”

In 1971, President Richard Nixon proclaimed July 20 National Moon Walk Day to commemorate the anniversary of Neil Armstrong and Buzz Aldrin setting foot outside our planet for the first time after their journey on Apollo 11 with pilot Michael Collins.

Even though 48 years have passed since this historic event, images from the Apollo missions continue to captivate new generations of space enthusiasts, thanks in part to Kipp Teague, a volunteer historian who runs the Project Apollo Archive. A few years ago, he uploaded his stash of high resolution scans to a Flickr page for everyone to enjoy.