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| Size |
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360 feet across,
290 feet long |
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| Weight |
About 1 million pounds |
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| Estimated cost |
More than $60 billion |
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| Date of completion |
April 2006 |
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| Assembly flights |
46 |
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| Time to orbit Earth |
90 minutes |
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| Speed |
17,500 miles per hour |
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The International Space Station (ISS) will be a little “city in space” orbiting 250 miles above the Earth. About the size of two football fields, the space station will be a place where people from around the world can live and study in space over long periods of time. The many modules of the station—from its laboratories to living quarters to power sources—will be constructed in space.
The ISS is the most ambitious and expensive construction project ever attempted, but it will someday serve as a stepping-stone for future space exploration.
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