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Apollo 11 was the first spaceflight to land humans on the Moon, conducted by NASA from July 16 to 24, 1969. Commander Neil Armstrong and Lunar Module Pilot Edwin "Buzz" Aldrin landed the Lunar Module Eagle on July 20th at 20:17 UTC. Armstrong became the first person to step onto the surface about six hours later, at 02:56 UTC on July 21st. Aldrin joined him 19 minutes afterward, and together they spent about two and a half hours exploring the site they had named Tranquility Base upon landing. They collected 47 pounds of lunar material to bring back to Earth before re-entering the Lunar Module.

In 1714, England's Parliament offered a huge reward to anyone whose method of measuring longitude could be proven successful. The scientific establishment--from Galileo to Sir Isaac Newton--had mapped the heavens in its certainty of a celestial answer. In stark contrast, one man, John Harrison, dared to imagine a mechanical solution--a clock that would keep precise time at sea, something no clock had been able to do on land. And the race was on....

A collection of BBC radio documentaries celebrating the lunar landings and their legacy. On July 20th 1969, for the first time in history, man walked on the moon. Over 50 years later, this 'giant leap for mankind' still captures our imagination, and in this four-part collection, we bring together some of the most fascinating and insightful BBC documentaries about our ever-changing relationship with our only natural satellite.

A man, tiring of an astronomy lecture, takes a walk in the mystical night air to renew his sense of purpose.

An all-seeing Moon rock of almost impossible age, called Bok, has been looking down at our blue and green planet for millennia. Geologists - people who study rocks - have a saying: 'rocks remember.' During his time, Bok has witnessed some truly wondrous things. Created in the earth-shattering collision four and a half billion years ago that led to the formation of the Moon, he has seen stars burst into being and meteors streak through the solar system. He has seen his own Moon surface be transformed with craters, and he has watched a fiery planet transform into the haven we know today.