The Lunar Module: This was the interior of the first manned spacecraft to land on the Moon

On July 20, 1969, a milestone took place: man landed on the moon, a feat made possible by a spacecraft called the Lunar Module.

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The American company Grumman, manufacturer of the famous F-14 Tomcat fighter jet, was responsible for building this Lunar Module, of which a total of 22 were made. Most of them were used for testing, and 8 of them are preserved in 22 museums. The following Lunar Modules were used in the Apollo missions: LTA-10R (Apollo 4), LM-1 (Apollo 5), LTA-2R (Apollo 6), LM-3 Spider (Apollo 9), LM-4 Snoopy (Apollo 10), LM-5 Eagle (Apollo 11), LM-6 Intrepid (Apollo 12), LM-7 Aquarius (Apollo 13), LM-8 Antares (Apollo 14), LM-10 Falcon (Apollo 15), LM-11 Orion (Apollo 16), and LM-12 Challenger (Apollo 17).

The first to reach the Moon was the 15th of the Lunar Modules built, the LM-5 Eagle. In addition to it, five other modules landed on the Moon: LM-6, LM-8, LM-10, LM-11 and LM-12. These modules had capacity for two crew members and were made up of two parts: an ascent module, in which the crew members went, and a descent module, equipped with four legs and which acted as a take-off platform when leaving the Moon. The six descent modules used by the Lunar Modules that landed on the Moon were abandoned there, where they remain today in the Sea of Tranquility (LM-5), Oceanus Procellarum (LM-6), Fra Mauro (LM-8), Mons Hadley in the Montes Apenninus (LM-10), the Descartes Highlands (LM-11), and the Taurus-Littrow Valley (LM-12).

The last three Lunar Modules (LM-10, LM-11, and LM-12) were each equipped with Lunar Rovers, four-wheeled vehicles that folded into one of the descent modules' quadrants and allowed astronauts to reach greater distances. Like the descent modules, these three Lunar Rovers were abandoned on the Moon.

On the other hand, Grumman began construction of three more Lunar Modules (LM-13, LM-14, and LM-15), but they were not completed due to the cancellation of the Apollo program after the launch of Apollo 17. Of those three modules, LM-13 was restored and is in the Cradle of Science and Technology Museum in New York, while the other two were scrapped.

You can watch an excellent video by Jared Owen here, in which he explains the history of these ships and what they were like inside: