Transport & space · 1998
International Space Station
Sixteen nations assemble a 420-tonne laboratory crewed continuously since 2000.
The first module, Zarya, launched in November 1998 and crews have lived aboard without interruption since November 2000. The station spans about 109 m and has hosted over 280 people from 20 countries. It is the largest structure humans have built in space.
What it built on 1
What it led to 4
Watch
Related measurements
The dashed line marks when it first worked.
Payloads in low Earth orbit Latest: 14.5k objects (2025) Source: Our World in Data
Objects launched into space Latest: 4.51k per year (2025) Source: Our World in Data