In December 1965 Sergei Pavlovich Korolev was finally put in charge of the Soviet Union’s manned lunar programme.
He would lead its two projects: one to fly a cosmonaut crew around the Moon; the other to land one on the surface.
But within a month he was dead (he died on 14 January 1966) following complications from surgery.
The nation’s secret assault on the Moon – a delayed response to President Kennedy committing the United States to do the same – had already faced huge challenges: insufficient funding; competing schemes and design bureaux; poor organisation.
But many felt that if anyone could pull off the seemingly impossible it would have been Korolev: the man who had steered the Soviet Union into space and a string of firsts between 1957 and 1965 – the first artificial satellite (Sputnik), first animal in orbit (Laika, a dog), first man in space (Yuri Gagarin), first woman in space (Valentina Tereshkova), first multiple crew and the first space walk (Alexei Leonov).
He had never been publicly named during these glory years, known only as the Chief Designer.
He was a remarkable man: a first rate engineer, designer and quite brilliant manager who ran much of the Soviet missile industry and most of its space sector.
He also knew how to get the best out of large numbers of workers in many different institutions and keep his political masters in the Kremlin happy.
His iron will, determination and energy were remarkable – it had helped keep him alive during the dark days of his imprisonment in the Gulag in eastern Siberia.
In 1938, while listening to a new gramophone record with his wife in their Moscow apartment, there was a knock on the door and the secret police came in to ransack their rooms.
He was taken away, and accused – quite falsely – of sabotage against the state.
This was the period of Stalin’s notorious purges when any perceived internal threat to the Soviet Union resulted in imprisonment at best and execution at worst.
Korolev survived his ordeal in the Gulag but many of his rocketry peers did not.
Vasily Mishn was appointed Chief Designer after Korolev’s death in January 1966. He too was a great engineer but without the drive and courage of Korolev.
Last year Alexei Leonov – the first man to walk in space – told me when visiting the Science Museum that in his opinion the Soviet Union, even had Korolev lived, would not have landed on the Moon before the US.
But he added that Mishin’s hesitating to send a cosmonaut crew around the Moon would not have been Korolev’s way.
Korolev, Leonov reckons, would have launched a crewed mission and perhaps beaten the Americans in doing so.
As it was, the Soviet’s unmanned Zond 5 spacecraft in September 1968 became the first to fly around the Moon and return safely to the Earth. A menagerie of small creatures and plants were on board including two tortoises.
Three months later the Americans’ Apollo 8 spacecraft repeated the feat but this time with a human crew of three. Within months the Americans trumped even this when Neil Armstrong and Buzz Aldrin took the first footsteps on the lunar surface.
Who knows what might have happened had the Soviets beaten the Americans in going round the Moon? History may have followed an entirely different trajectory. But Korolev’s achievements remain on the record to be admired and celebrated in the Science Museum’s Cosmonauts exhibition.
Korolev’s anonymity came to an end immediately after his death. He was given a state funeral and his ashes interred in the Kremlin’s walls. Visitors to the Cosmonauts exhibition can now learn of the man, his life and his launching of the space age in which we still live.
Cosmonauts: Birth of the Space Age is open at the Science Museum until 13 March 2016. Find out more and book tickets here.