Respuestas
Laika, a dog that was the first living creature to be launched into Earth orbit, on board the Soviet artificial satellite Sputnik 2, on November 3, 1957. It was always understood that Laika would not survive the mission, but her actual fate was misrepresented for decades.
Laika was a small (13 pounds [6 kg]), even-tempered, mixed-breed dog about two years of age. She was one of a number of stray dogs that were taken into the Soviet spaceflight program after being rescued from the streets. Only female dogs were used because they were considered to be anatomically better suited than males for close confinement. Laika trained for life on board the satellite by learning to accept progressively smaller living spaces. She was spun in a centrifuge to accustom her to changes in gravitation, and she learned to accept food in jellied form that could be easily served in an environment of weightlessness.