Apollo 13

He piloted Apollo 16 and commanded the shuttle. But he may be best known for the mission he didn't fly: the ill-fated Apollo 13. And he worried late in life about the high cost of human space flight.

Lunney, who played an integral role in the agency's Apollo program, died Friday. He was credited for his quick decision-making during the race to save the lives of the Apollo 13 astronauts.

SUGAR LAND, Texas — George Clooney has joined astronauts Jim Lovell, Tom Stafford and Eugene “Gene” Cernan at a gala in Texas to celebrate the 45th…