Portal:Outer space/Selected article/17

Laika was one of the Russian space dogs and the first living being to enter orbit, as a passenger on Sputnik 2, a Soviet spacecraft. Some classify her as the first animal to enter space, although other animals had entered space during sub-orbital flights on previous missions. Laika was found as a stray wandering the streets of Moscow, a female part-Samoyed terrier weighing approximately 6 kg (13 lb). Laika died on November 4, 1957, a few hours after launch, due to overheating, and her remains were destroyed during re-entry on April 14, 1958. Her true cause of death was not made public until years after the flight, with officials always stating that she was either euthanized by poisoned food or died when the oxygen supply ran out. Russian officials have since expressed regret for allowing Laika to die.