Corona (satellite) retrieved two days later by a C-119 Flying Boxcar transport plane. This was the first successful return of photographic film from orbit. In comparison, Sputnik 5 was launched into orbit on August 19, 1960, one day after the launch of Discoverer 14. Sputnik 5 was a biosatellite that took into orbit the two Soviet space dogs, Belka and Strelka, and then safely returned them to the Earth . At least two launches of "Discoverers" were used to test satellites for the Missile Defense Alarm System (MIDAS), an early missile-launch-detection program that used infrared cameras to detect the heat signature of
Bring the Boys Back Home A IV-V-I chord progression in G major repeats, providing a sense of satisfaction. This is followed by a reversal, from G to D major with F-sharp in the bass, to C major, which features a tritone movement in the bassline, going from F♯ to C, introducing a sense of instability. This progression is a recurring Pink Floyd theme, appearing throughout the album in "Hey You", "Vera", and others, as well as several songs on Waters and company's follow-up concept album on the losses of war, "The Final Cut". Waters and choir exhort, ""Bring the boys back home / Don't leave