Nanotechnology may hold the key to making spaceflight more practical. Advancements in materials to make lightweight solar sails and the cable for the space elevator could significantly cut the cost of reaching orbit and traveling in space, as well as dramatically reducing the amount of rocket fuel used. Also new materials, along with nanosensors and nanorobots could improve the performance of spaceships, spacesuits and equipment used to explore planets and moons, making a big difference on the ‘final frontier.’
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