Dogs have been used in a variety of fields, ranging from military and police work, to search and rescue and even therapy. However, they have also taken a starring role in space exploration. In 1957, Laika became the first living creature to be sent into space aboard the Soviet satellite Sputnik 2 and has since been immortalized as a hero of the space age. Since then, numerous other dogs have been sent into space as part of scientific experiments to study the effects of zero-gravity environments on living organisms. Dogs have also been trained to serve as test subjects for developing space equipment, such as space suits and food systems. In addition, dogs have been subjects in medical experiments in space, providing scientists with valuable data regarding the effects of radiation on living things. The contributions of these brave dogs have greatly expanded human knowledge about space exploration and the potential for human exploration of the universe.

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