Laika's last days: The childhood memories that bring the story of the Soviet space dog back to life

A dog playing with children in a family home near Moscow might sound like an ordinary childhood memory. But for Professor Viktor Yazdovsky, that memory has a place in one of the most extraordinary chapters of space exploration. The dog was Laika, the Soviet stray who would soon become the first animal to orbit the Earth. The children were Viktor and his sisters. And the man who brought her home was his father, Vladimir Yazdovsky, a scientist involved in the medical side of the Soviet space programme.

Nearly seven decades later, Viktor's recollections have brought renewed attention to a story that is often remembered only for its scientific achievement and tragic ending. In a BBC feature published on 30 October 2026, the broadcaster revisited his account of meeting Laika shortly before her historic flight. His testimony, originally shared with BBC Witness History in 2017, offers a rare personal perspective on the animal behind the headlines.

A childhood memory before a historic mission

Viktor was around nine years old when his father brought Laika to his grandmother's home, not far from Moscow. He remembered her as a patient, affectionate and intelligent dog, with expressive dark eyes.

Viktor and his sisters spent time playing with her. His father wanted the dog to experience the warmth of a family home before being sent into space.

It was a brief moment of ordinary life before an extraordinary and ultimately fatal mission.

What makes the memory particularly significant is that the scientists involved already understood the risks. The Soviet Union did not have the technology to bring a living creature safely back to Earth after an orbital flight. Laika's journey was therefore planned as a one-way mission.

Viktor recalled that everyone involved was concerned about her fate. His memories offer a different perspective on the space programme: behind the scientific preparations were people who had grown attached to the animals they were sending into dangerous conditions.

How a Moscow stray became a space pioneer

Laika's journey began on the streets of Moscow, where she was found as a stray. Soviet scientists were searching for suitable dogs for their early space experiments, hoping to understand how living organisms would respond to the conditions of space before attempting human spaceflight.

Stray dogs were considered suitable because researchers believed they were resilient and accustomed to surviving difficult conditions. Small female dogs were particularly useful for the spacecraft's design and equipment.

Laika was originally named Kudryavka, meaning Little Curly. She later became known as Laika, a name associated with a type of Russian hunting dog.

Between 1951 and 1965, the Soviet Union sent more than 50 dogs into space. Many of the earlier flights were suborbital, meaning the animals travelled beyond the atmosphere without completing an orbit around Earth.

Laika's mission, however, would be different.

The Space Race that accelerated her journey

Laika's selection cannot be understood without looking at the Cold War rivalry between the United States and the Soviet Union.

Both superpowers were competing to demonstrate their technological capabilities, and space exploration had become an important part of that contest.

On 4 October 1957, the Soviet Union launched Sputnik 1, the world's first artificial satellite to orbit Earth. The achievement gave the country an important advantage in the emerging Space Race.

Soviet leader Nikita Khrushchev wanted another milestone to coincide with the 40th anniversary of the Bolshevik Revolution on 7 November 1957.

Chief designer Sergei Korolev and his team were given only a few weeks to prepare another spacecraft. The result was Sputnik 2, designed to carry a living passenger into orbit.

The rushed preparation meant that important aspects of the spacecraft were not fully developed. There was no reliable recovery system that could bring Laika back alive.

The mission that changed space history

On 3 November 1957, Sputnik 2 was launched from the Baikonur Cosmodrome in present-day Kazakhstan.

Laika became the first animal to orbit Earth. Her spacecraft completed an orbit in approximately 103 minutes, marking another significant achievement for the Soviet space programme.

But the mission had a tragic outcome.

The spacecraft's thermal-control system failed to keep the cabin temperature within safe limits. The temperature inside rose dangerously, and Laika died within hours of launch.

For years, the Soviet authorities maintained that she had survived for several days in orbit. The truth emerged much later.

In 2002, Russian scientist Dimitri Malashenkov disclosed that Laika had died within hours because of overheating and stress. Previously classified Soviet records released in 2011 provided further information about the rising cabin temperature and the loss of medical data.

The exact moment of her death remains uncertain because the spacecraft transmitted incomplete information.

Sputnik 2 continued orbiting Earth without her before re-entering the atmosphere on 14 April 1958, after 162 days in orbit.

The reaction to Laika's death

Although the Soviet Union celebrated the mission as a scientific achievement, Laika's fate attracted international criticism.

Animal welfare organisations and campaigners questioned the decision to send an animal into space without any possibility of returning her safely.

Protests took place outside the Soviet embassy in Britain, while dog lovers in New York gathered with their pets outside the United Nations building.

The controversy raised a question that remains relevant to scientific research: should the pursuit of progress come at the expense of an animal's life?

Laika's mission demonstrated that a living organism could reach and orbit Earth, but it also exposed the ethical limitations of early space experimentation.

From Laika to human spaceflight

The Soviet animal space programme continued after Laika's death.

On 19 August 1960, two dogs, Belka and Strelka, travelled aboard Sputnik 5. They completed 17 orbits around Earth and returned safely the following day.

Their mission was an important step towards establishing that living creatures could survive an orbital journey and be recovered.

On 12 April 1961, Yuri Gagarin became the first human to travel into space and orbit Earth aboard Vostok 1.

Laika's flight had been one part of the wider research programme that helped scientists understand the challenges of spaceflight. However, her mission did not itself establish that humans could safely complete an orbital journey and return.

A memory that goes beyond a scientific record

Laika eventually became an icon of Soviet space exploration. Her image appeared on commemorative stamps and envelopes, while a monument honouring her was unveiled in Moscow in 2008. The sculpture depicts a dog standing on a human hand that transforms into a rocket.

Her story also prompted reflection among the scientists involved in the programme. Oleg Gazenko, one of the researchers who helped select and train the space dogs, later expressed regret over Laika's death. He questioned whether the scientific knowledge gained from the mission justified the sacrifice.

But Viktor Yazdovsky's recollections add something different to this historical legacy.

For most people, Laika is remembered through photographs of a dog inside a spacecraft, the launch of Sputnik 2 and the tragedy that followed. For Viktor, she was also the affectionate dog who visited his grandmother's home, played with children and spent a short time away from the laboratory.

That is what makes his account so significant. It brings the story back to the individual animal behind the historic achievement.

Laika travelled farther than any living creature before her, but she never returned to the people who had cared for her.

Her place in space history is secure. Yet, through the memories of a scientist's son, the world is reminded that before she became a symbol of scientific progress, she was simply a dog who had briefly experienced the warmth of a home.