ISS timeline: Memorable moments from the space station

Space scientists around the world are preparing to mark the 20th anniversary of humanity’s continuous presence in outer space. On November 2, it will be exactly two decades since astronauts have made their homes 250 miles above the Earth, through their uninterrupted occupancy of the International Space Station (ISS). Built, crewed and operated in partnership between the US, Russia, Japan, Canada and Europe, the ISS circles the globe once every 90 minutes at a speed of around 17,000 miles per hour. Here is a timeline of some of the key events associated with the orbiting space lab.