Mr Morgan conducted a huge amount of research about the Royal Family before writing his hit show. He claimed that the Duke of Edinburgh, who was a pilot, would have been extremely interested in the Apollo 11 mission. In July 1969, Neil Armstrong and Buzz Aldrin were the first men to walk on the surface of the Moon, while their colleague Michael Collins remained in the control module.
The moment was immortalised in footage that was shown live on TV and by Mr Armstrong’s famous phrase: “One small step for man, one giant leap for mankind.”
In The Crown season three, episode seven named ‘Moondust’, the astronauts visit Buckingham Palace and Philip gets to meet the “heroes”.
The Duke of Edinburgh meets the three men alongside the Queen, and his four children Prince Charles, Princess Anne, Prince Andrew and Prince Edward.
However, Philip is soon disappointed upon discovering that they are “simply talented engineers”, not the glorious figures he imagined.
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Prince Philip was reportedly "obsessed" with Apollo 11 (Image: GETTY)
Olivia Coleman plays the Queen and Tobias Menzies plays Prince Philip in The Crown (Image: GETTY)
The episode ties in this huge historical event to Philip’s own feelings of restlessness at the time.
Mr Morgan said: “I chose the lunar landing because it intersects with the Duke of Edinburgh who I know is a pilot.
“He would have been obsessed with what was going on, as we all were.
“I found a really interesting way of combining that with the astronaut who came to Buckingham Palace within a few days of landing back on Earth.”
Neil Armstrong, Michael Collins and Buzz Aldrin (Image: GETTY)
The astronauts embarked on a world tour after their successful trip, greeted by adoring fans everywhere they went.
One stop on the tour was London, where they were received by Queen Elizabeth II, her husband Philip and other members of the Royal Family in October 1969.