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The Apollo LM StructureThe Apollo Lunar Module (LM) was a tough aluminum spacecraft wrapped in high-tech insulation to survive the lunar environment. The wrinkled “foil” wrap was multi-layer insulation made of Kapton and Mylar, protecting the LM against the extreme heat and cold in space.Under the foil wrap was a solid, structured spacecraft:🔹 Outer layer: Gold & silver “foil” insulation🔹 Underneath: Aluminum alloy honeycomb panels and structure🔹 Descent stage: Landing gear, fuel tanks, storage bays🔹 Ascent stage: Pressurized crew cabin with aluminum walls, windows, and hatchesThe Lunar Module’s WindowsThe LMs windows were not traditional glass; they were made of multiple layers of robust, transparent materials designed for space conditions.Specifically:Outer layer: Fused quartz or aluminosilicate glass for impact and thermal resistance.Inner layers: Laminated glass or transparent plastic (like polycarbonate) to provide insulation and structural support.Coatings: Some of the layers had coatings to reduce glare and protect against ultraviolet radiation from the Sun.About The Photo: February 5, 1971: Photo of the Apollo 14 Lunar Module (LM) on the Moon. Photo Credit: NASA