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Loading contentThe era of continuous human presence in orbit aboard the International Space Station — the largest structure ever built in space and a laboratory for living and working off Earth.
The era of continuous human presence aboard the ISS.
The Zarya module launches, the first piece of the International Space Station — the largest structure ever assembled in space, built by fifteen nations.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.