WASHINGTON DC — The Portable Life Support System backpack display at the Smithsonian National Air and Space Museum shows the life support technology that enabled Apollo astronauts to explore the Moon's surface independently of their spacecraft. The backpack provided astronauts with oxygen supply, cooling water circulation, carbon dioxide filtering, and communications equipment, essentially transforming the spacesuit into a self-contained spacecraft. This particular system weighs 125 pounds (57 kilograms) on Earth but felt significantly lighter on the Moon due to its one-sixth gravity. The colo

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