The patch features Apollo, the god of the sun. Apollo's chariot is flying across space. The Latin phrase: "Ex Luna Scientia" means "From the moon, knowlege." 

An explosion in one of the service module oxygen tanks crippled the spacecraft and forced a return to earth without landing.

Launch Date: April 11, 1970

Launch Vehicle: Saturn V

Crew: James A. Lovell Jr., John L. Swigert, Jr., Fred W. Haise