SOLAR SYSTEM

Detailed explanation-1: -However, these were suborbital flights, which meant the spacecraft passed into outer space before falling back to Earth without making an orbit. The first animal to make an orbital spaceflight around the Earth was the dog Laika, aboard the Soviet spacecraft Sputnik 2 on 3 November 1957.

Detailed explanation-2: -Laika, a Moscow street dog, became the first creature to orbit Earth, but she died in space.

Detailed explanation-3: -Laika had actually survived only about five to seven hours after liftoff before dying of overheating and panic. It was belatedly made known that Laika’s pulse rate, which had been measured with electrodes, tripled during takeoff and only came down somewhat during weightlessness.

Detailed explanation-4: -It is believed Laika survived for only about two days instead of the planned ten because of the heat. The orbit of Sputnik 2 decayed and it reentered Earth’s atmosphere on 14 April 1958 after 162 days in orbit.

Detailed explanation-5: -The Soviet Union launches the first animal to orbit the earth into space-a dog nicknamed Laika-aboard the Sputnik 2 spacecraft. Laika, part Siberian husky, lived as a stray on the Moscow streets before being enlisted into the Soviet space program.

Detailed explanation-6: -Laika was not the first space dog: Some had soared in the Soviet military’s sub-orbital rocket tests of updated German V-2 rockets after World War II, and they had returned to Earth via parachuted craft-alive or dead. She also would not be the last dog to take flight.