Buzz Aldrin is seen in this Neil Armstrong photo facing the first lunar flag at Tranqullity Base. Boldly signed large in silver metallic ink.

Buzz Aldrin, fascinated by the consistency of the lunar soil, took this now-famous shot of his footprint, removing his chest-mounted camera to point it straight down. Aldrin adds "July 20, 1969" below his autograph.

Buzz Aldrin, fascinated by the consistency of the lunar soil, took this now-famous shot of his footprint, removing his chest-mounted camera to point it straight down. Aldrin adds "July 20, 1969" below his autograph.

Buzz Aldrin is seen in this Neil Armstrong photo facing the first lunar flag at Tranqullity Base. Boldly signed large in silver metallic ink.

The most popular photo to come from the Apollo program. Buzz Aldrin pauses in a small crater, while Neil Armstrong snaps this picture from his chest-mounted Hasselblad camera. Armstrong and the Lunar Module are reflected in Aldrin's visor.

The Apollo 11 LM ascent stage containing Armstrong and Aldrin, positions itself for rendezvous with the Command Module containing Mike Collins. Photo by Collins

Buzz Aldrin slowly descends the LM ladder for his first step on the moon. He signs in bold gold pen.

The most popular photo to come from the Apollo program. Buzz Aldrin pauses in a small crater, while Neil Armstrong snaps this picture from his chest-mounted Hasselblad camera. Armstrong and the Lunar Module are reflected in Aldrin's visor.

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