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The ISS consists of 16 pressurized modules and an extensive truss structure. Power is provided by 16 large solar panels mounted on the external truss, in addition to four smaller panels on the Russian modules. The ISS is about 360 feet wide, from one end of the truss to the other, and 240 feet long, from the end of one module to the other. The living and working area for the crew of six is equivalent to the interior of two Boeing 747 jumbo jets.