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CBS News ISS Statistics

The International Space Station is one of the most complex -- and expensive -- engineering projects in human history, requiring more than 160 rocket launches since construction began in 1998 and 190 spacewalks by 122 astronauts and cosmonauts representing nine nations.

Massing nearly 925,000 pounds, the space station features 14 pressurized modules with a volume equivalent to a 747 jumbo jet, a huge solar array truss stretching the length of a football field, a robot arm, a high-speed computer network and communications equipment, sophisticated life support systems and research gear in a variety of disciplines.

Here is a table of quick-look statistics updated through Nov. 1, 2015:

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