Apollo 10 lunar module pilot Eugene A. Cernan prepares to enter the lunar module simulator at the Flight Crew Training Building at the NASA Spaceport. Cernan, Apollo 10 commander Thomas P. Stafford and John W. Young, command module pilot, are to be launched May 18 on the Apollo 10 mission, a dress rehearsal for a lunar landing later this summer. Cernan and Stafford are to detach the lunar module and drop to within 10 miles of the moon's surface before rejoining Young in the command/service module. Looking on as Cernan puts on his soft helmet is Snoopy, the lovable cartoon mutt whose name will be the lunar module code name during the Apollo 10 flight. The command/service module is to bear the code name Charlie Brown. 1969-04-17 KSC-69P-0260 P-20997,ARCHIVE-02938 NASA Kennedy Space Center NASA-KSC http://images.ksc.nasa.gov/ http://images.ksc.nasa.gov/photos/1969/thumb/KSC-69P-0260.gif GIF 67 100 9294 http://images.ksc.nasa.gov/photos/1969/low/KSC-69P-0260.gif GIF 160 240 53217 http://images.ksc.nasa.gov/photos/1969/medium/KSC-69P-0260.jpg JPEG 512 768 72632 http://images.ksc.nasa.gov/photos/1969/high/KSC-69P-0260.jpg JPEG 1536 2304 509349