Until 1957, no one had gone to the Moon and people on Earth had no idea how gravity would act if one were in space, or how safe a person would be in a spacesuit. Because no one knew what kind of consequences the human body would face in space, and how risky it would be. So in search of a solution, it was done in Russia that a dog was tested to see what effect the space environment would have on the dog's body. For this, a stray female dog named Laika was selected from the streets of Moscow to be sent into space through the Sputnik 2 spacecraft.
To make her ready for this space journey, many sensors were placed on Laika's body to measure her breathing and pulse rate. No one knew what was going to happen with her on this journey, but still, preparations were being made for it. And finally, Laika was launched into low orbit on 3 November 1957, during which she was completely frightened as shown by her breathing and pulse rate sensors. It was triple the normal pulse rate of a dog and it was further increasing as she went deeper and deeper into space.
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But the technology of that time was not that advanced and inside the cabin in which she was, the heat started increasing so much that the temperature went above 40 degrees. Unfortunately, after spending seven hours on this journey, a dog could not tolerate the continuous temperature of more than 40 degrees, and that too in the strange gravity of space, which caused her pulse to go off suddenly, as the cabin was completely overheated.
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So in this way, Laika became the world's first space dog who died in space, and her body melted in the spacecraft due to excessive heat. Laika's story is sad, but after that, there were technological advancements and the first dog pair that went into space and returned safely was Belka and Strelka. This was the first dog pair that was blasted off in a rocket on August 19, 1960, and returned safely a day later. Now the list of animals in space is very long, as a variety of animals have been sent into space including monkeys, dogs, cats, frogs, ants, and even jellyfish.
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