Buzz Aldrin is quoted as having made three observations, one of which was of something with a "sizeable dimension."

The Pentagon on Friday released online what it called “new, never-before-seen” files, dating back decades, related to unidentified flying objects.

A photograph from the Apollo 17 mission in 1972, the last time humans set foot on the lunar surface, shows three mysterious dots in a triangular formation floating in the sky.