International Space Station
The largest thing people have built in space: about 109 metres from end to end and some 420 tonnes, put together in orbit over more than a decade. Its first module, Zarya, went up in November 1998, and it has had a crew aboard without a break since November 2000. The United States, Russia, Europe, Japan and Canada run it together. Its solar arrays are why it is the brightest satellite in the sky.
414 to 424 km up, one lap every 92.9 minutes, magnitude −3.7 at its brightest.
