Laika

Laika

Laika in a flight harness
Other name(s)	Kudryavka (Кудрявка, "Curly")
Species	Canis familiaris
Breed	Mongrel, possibly part-husky (or part-Samoyed) and part-terrier
Sex	Female
Born	Laika (Лайка) c. 1954 Moscow, Russian SFSR, Soviet Union
Died	3 November 1957(1957-11-03) (aged 2–3) Sputnik 2, in low Earth orbit
Cause of death	Overheating
Known for	First animal to orbit the Earth
Owner	Soviet space program
Weight	5 kg (11 lb)

Laika (/ˈlaɪkə/ LY-kə; Russian: Лайка, IPA: [ˈlajkə]; c. 1954 – 3 November 1957) was a Soviet space dog who was one of the first animals in space and the first to orbit the Earth. A stray mongrel from the streets of Moscow, she flew aboard the Sputnik 2 spacecraft, launched into low orbit on 3 November 1957. As the technology to de-orbit had not yet been developed, Laika's survival was never expected. She died of overheating hours into the flight, on the craft's fourth orbit.

Little was known about the effects of spaceflight on living creatures at the time of Laika's mission, and animal flights were viewed by engineers as a necessary precursor to human missions.^[1] The experiment, which monitored Laika's vital signs, aimed to prove that a living organism could survive being launched into orbit and continue to function under conditions of weakened gravity and increased radiation, providing scientists with some of the first data on the biological effects of spaceflight.

Laika's death was possibly caused by a failure of the central R‑7 sustainer to separate from the payload. The true cause and time of her death were not made public until 2002; instead, it was widely reported that she died when her oxygen ran out on day six or, as the Soviet government initially claimed, she was euthanised prior to oxygen depletion. In 2008, a small monument to Laika depicting her standing atop a rocket was unveiled near the military research facility in Moscow that prepared her flight. She also appears on the Monument to the Conquerors of Space in Moscow.