Apollo 17 astronaut James Lovell lifts his hands out of the wet concrete during a media event at Adler Planetarium earlier today in Chicago. Lovell's hand and foot prints, as well as those of Apollo 17 astronauts Eugene Cernan and Harrison Schmitt, will be displayed in an upcoming exhibit to celebrate 40th anniversary of the Apollo 17 mission, the 11th and final manned flight to the Moon for NASA's Apollo program. (AP Photo/Kiichiro Sato)