Between 1951 and 1966, the USSR sent over twenty dogs into the cosmos, but to be fair, they weren’t the only ones who tested the viability of human space travel by sending animals up first. What separated the Soviet space dogs from the American monkeys, however, was that Soviet programs didn’t always have the animal’s best interests at heart. And by that we mean they often had no intention of bringing the animal back alive.

JesseWachter