Which mission carried the first living creatures to orbit Earth and return safely?
- Sputnik 2
- Vostok 1
- Korabl-Sputnik 5
- Mercury-Atlas 6
Answer: Korabl-Sputnik 5
Korabl-Sputnik 5 (Aug 1960) returned dogs Belka and Strelka after 18 orbits; Laika (Sputnik 2) died in orbit, making KS-5 first safe biological return.