At an altitude of 100 kilometers above sea level, an invisible boundary called the Kármán line differentiates Earth's atmosphere from outer space. Ever since the Soviet space program launched fruit flies past this line in 1947, many space missions around the world have experimented on the effects of space travel on other creatures. Can you name the 8 mammals that have entered outer space?
Name All the Mammals Who've Been to Outer Space
QUESTION 1 of 1