A panel discussion with Apollo astronauts took place during the Apollo 11 50th Gala, present by Northop Grumman, inside the Apollo/Saturn V Center at the Kennedy Space Center Visitor Complex in Florida on July 16, 2019. From left, are Apollo 9 astronaut Rusty Schweickart, Apollo 11 astronaut Michael Collins, Apollo 16 astronaut Charlie Duke, and Apollo Flight Director Gerry Griffin.

S71-51265 (1971) --- Astronaut Russell L. "Rusty" Schweickart Jr.

S64-29936 (10 Sept. 1964) --- Astronaut Russell L. "Rusty" Schweickart, Jr.

S71-51266 (21 Sept. 1971) --- Astronaut Russell "Rusty" L. Schweickart Jr.

Physicist Brian Cox serves as the moderator for a panel discussion with Apollo astronauts during the Apollo 11 50th Gala on July 16, 2019. The gala, presented by Northrop Grumman, was held inside the Apollo/Saturn V Center at the Kennedy Space Center Visitor Complex. From left, are Apollo 9 astronaut Rusty Schweichart, Apollo 11 astronaut Michael Collins, Apollo 16 astronaut Charlie Duke, and Apollo Flight Director Gerry Griffin.