The Dog Who Beat Humans Into Space

On November 3, 1957, a small stray dog named Laika blasted off from a launch site in Kazakhstan and became the first living creature ever to orbit the Earth. Soviet scientists had picked her off the streets of Moscow and trained her for the dangerous mission. Laika made history, but she never returned home — her spacecraft had no way to bring her back safely. Her story is one of the most remembered and debated moments of the early Space Age.

Before humans ever traveled to space, Soviet scientists looked for animals to test whether living things could survive the journey. They searched the streets of Moscow for small stray female dogs, choosing strays because they were tough and used to harsh conditions. Female dogs were preferred because they tended to be calmer, and they had to weigh no more than about 13 to 15 pounds to fit inside the tiny spacecraft. The training was demanding, but scientists believed these street dogs had the strength and patience to handle it.

The dog who became Laika was first called Kudryavka, meaning 'Little Curly' in Russian. When she was introduced to the public over the radio, she barked — and people started calling her Laika, which means 'barker.' Viktor Yazdovsky, whose father led the medical side of the Soviet space program, remembered playing with Laika as a nine-year-old boy just before her launch. 'She was a very patient dog, very affectionate,' he said. 'She had very expressive dark eyes.'

The mission happened because Soviet leader Nikita Khrushchev wanted a big achievement to mark the 40th anniversary of the Russian Revolution on November 7, 1957. Just weeks earlier, the Soviets had launched Sputnik I — the world's first man-made satellite — on October 4, 1957. Khrushchev was impressed but wanted something even bigger, and fast. He gave his scientists only a few weeks to make it happen, which meant there was not enough time to plan everything carefully.

The head of the Soviet space program was a brilliant engineer named Sergei Korolev, who had dreamed of space travel since he was young. His daughter said he once wrote: 'From now on I have one aim in life — to reach the stars.' Korolev had already built a powerful rocket called the R7 Semyorka, which became the world's first intercontinental ballistic missile. Now he used that same rocket to send a living passenger into orbit.

To prepare for spaceflight, the dogs lived for days or even weeks inside tiny pressurized capsules before launch. Doctors tested how they reacted to loud sounds, changes in air pressure, and weightlessness. The Soviets chose dogs partly because scientist Ivan Pavlov had studied dog biology for years, giving scientists a strong understanding of how dogs' bodies worked. They believed this knowledge would help them predict what would happen to humans in space.

Sadly, scientists knew from the start that Laika's mission would be a one-way trip, because they had not yet figured out how to safely return a spacecraft from orbit. Because of the rush to launch, the capsule's temperature controls were not properly finished. Laika died from overheating and stress just five to seven hours into the flight — not after several days, as the Soviet government claimed for many years. In 2002, Russia finally admitted the truth about how and when she died.

The news that Laika had been sent on a mission with no return sparked outrage around the world. Animal rights groups in Britain picketed the Soviet embassy, and dog lovers marched outside the United Nations building in New York. The backlash led to real change — future missions were designed with systems to bring animals back safely to Earth. On August 19, 1960, two Soviet dogs named Belka and Strelka completed 17 orbits and landed safely the next day.

Laika became an icon of early space exploration, appearing on stamps, envelopes, and even cigarette packages. In 2008, a two-meter-tall monument was unveiled in Moscow showing a rocket turning into a hand with a dog standing in its palm. Even so, one of the scientists who trained her had regrets. 'The more time passes, the more I'm sorry about it,' said Oleg Gazenko in 1998. 'We did not learn enough from this mission to justify the death of the dog.'