Astronaut Valentina Tereshkova Space Mini Sov. Sheet MNH Fur Seal and the moulted shells of

and the moulted shells of crabs and lobsters are exuviae

Apollo 11 was the spaceflight that landed the first two people on the Moon

enforcing quarantines and regulations

Astronaut Inventor Engineer Chemist Archaeologist Zoologist Astronomer Computer Graphics

in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding

Astronaut Valentina Tereshkova Space Mini Sov. Sheet MNH Fur Seal and the moulted shells ofAstronaut Valentina Tereshkova Space Mini Sov. Sheet MNH An astronaut or cosmonaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. Although generally reserved for professional space travelers, the terms are sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists. Until 2002, astronauts were sponsored and trained exclusively by