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11 moments from the International Space Station’s first 20 years

It was November 20, 1998, when an unprecedented international coalition of astronomers, engineers and rocket scientists saw years of collaboration come to fruition with the launch of the International Space Station’s first component. Since then, the largest spacecraft ever built has hosted innumerable astronauts, experiments and other craft. Here are a few notable moments in the history of this inspiring and decades-spanning mission.

1984: Reagan proposes the ISS — without Russia

The space station was originally going to be a U.S. effort, but soon became a collaboration with Canada, Japan and Europe, excluding the then-USSR. American-Russian relations were strained then, as you may remember, and although many in the space industry itself would have preferred working together, the political climate did not permit it. Nevertheless, initial work began.

1993: Clinton adds Russia to the bill

The collapse of the Soviet Union and subsequent rejuvenation of international relations led President Bush to bring them into the program in a limited fashion, as a supplier and as a guest on a shuttle mission. The next year, however, President Clinton one-upped him with the announcement that Russia would be a full partner. This was both a practical and political decision: Russian involvement would save billions, but it also helped bring Russia on board with other issues, like ICBM de-proliferation efforts. At any rate, designs were finally beginning to be built.

1998: The first components, Zarya and Unity, launch to orbit

Endeavour approaches Zarya when the latter was the only component in place.

Though persona non grata at first, Russia had the privilege of launching the first core component of the ISS on November 20, 1998, the anniversary we are celebrating today. The Zarya Functional Cargo Block is still up there, still being used, forming the gateway to the Russian side of the station.

One month later, Space Shuttle Endeavour took off from Launch Complex 39A (we’ve been there) carrying Unity Node 1. This too is up there now, attached since that day to Zarya.

2000: The first of many long-term occupants arrive

From left: Shepherd, Gidzenko and Krikalev, aboard the station.

Almost exactly a year after Zarya went up, the first astronauts took up residence on the ISS — the first of 230 people so far to call the orbiting structure home. Bill Shepherd was NASA’s first representative, flying with cosmonauts Yuri Gidzenko and Sergei Krikalev; they would stay for about 141 days.

2003: Columbia disaster delays expansion

The fatal breakup of Space Shuttle Columbia on reentry following its 28th mission was tragedy enough that other shuttle missions were scrubbed for over two years. As these were the primary means of the U.S. adding to and maintaining the ISS, this responsibility passed to Roscosmos until shuttle launches resumed in 2005; crewed launches wouldn’t resume until mid-2006.

2007: Kibo goes up

Numerous modules have been added to the ISS over the years, but Japan’s Kibo is the largest. It took multiple missions to deliver all the pieces, and was only made possible by earlier missions that had expanded the solar power capacity of the station. Kibo contains a ton of reconfigurable space accessible from the pressurized interior, and has been popular for both private and public experiments that must be conducted in space.

2010: Enter the Cupola

If Kibo is the largest component, the Cupola is likely the most famous. The giant 7-window bubble looks like something out of science fiction (specifically, the front end of the Millennium Falcon) and is the location for the station’s most striking photography, both inside and out.

2014: Beautiful timelapses