The Apollo 13 mission was to be the third lunar landing in the program before an on board explosion forced the mission to circle the Moon without landing. This is the insignia of the Apollo 13 lunar landing mission. Represented in the Apollo 13 emblem is Apollo, the sun god of Greek mythology, symbolizing how the Apollo flights have extended the light of knowledge to all mankind. The Latin phrase Ex Luna, Scientia means “From the Moon, Knowledge.”
Image credit: NASA