Abstract
On July 20, 1969, astronaut Neil Armstrong became the first person to walk on the moon. Over the next 3 years, 11 others followed in his footsteps. However, astronauts have not returned to the moon in nearly 50 years. Since then, scientists have talked about sending people back to the moon or even to Mars. Some scientists want to establish permanent colonies in space in case resources ever run out on Earth. But how do you build places to live and work in an area with no construction materials, equipment, or workforce? One promising solution may be three-dimensional printing.
Highlights
Astronaut Neil Armstrong became the first person to walk on the moon
Scientists have talked about sending people back to the moon or even to Mars
SULFUR A material commonly found on Mars that is used to help the ingredients of a concrete mix stick together
Summary
D-printed construction here on Earth. (A) The author with a concrete barracks hut used to house military troops on deployment. Buildings can be printed using materials found in space, like crushed rocks and dust. Regolith is the layer of crushed rock and dust produced on the moon’s surface after centuries of micrometeorite strikes It is the simplest and most common material used in D-printed construction in space. Figure shows how a reinforced concrete beam can experience both compression and tension. Because the moon’s gravity is % weaker than gravity on Earth, space structures experience less tensile and compressive forces This allows engineers to print lighter, slimmer structures, and use less materials [ ]. Printers do not need air, water, or food This saves money and makes space construction easier. Weight produces both compression and tension in reinforced concrete beams. A process of manufacturing or constructing items and structures by printing them in sequential layers
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