We wave goodbye today to one of space explorations most iconic vehicles, space shuttle discovery. Since its first flight in 1984 discovery has been on 38 flights and orbited the earth 5,247 times. However today the spacecraft launched on its last flight on a mission to take vital spare parts to the international space station. Discovery launched at 4:53 p.m. EST from the Kennedy Space Center, Florida. We wish the best of luck to all of the crew on-board and on the ground.