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
Space Dogs street dogs but the next morning all three of them were caught by the strange man. After being caught the dogs are put on a train to Baikonur where they ended up at a Soviet space program training center. There they met their trainer, Kazbek, who had to choose the two best dogs from the group. A month before launch date the chosen group was Bula and Mula, but on the final training day Venya came in first, with Belka and Strelka in 2nd and 3rd place. Belka and Strelka needed to fly with Venya, because he was first and