Has a guinea pig gone to space?

Yes, guinea pigs have gone to space. In 1961, two guinea pigs named Hector and Felix were sent into space on a Soviet spacecraft. The mission was successful and the guinea pigs returned to Earth safely. Hector and Felix were part of a series of experiments conducted by the Soviet Union to test the effects of space travel on living organisms. Other animals that have been sent into space include dogs, cats, monkeys, and even a tortoise.