Russia says it will quit International Space Station after 2024

The International Space Station, which circles the planet from 250 miles up, is often considered to be above the earthly conflicts that play out beneath. The orbiting outpost has weathered its share of political turmoil in more than two decades of hosting humans.

As a symbol of post-cold war cooperation, the US-Russian partnership has been a clear success. But it has not always been a smooth ride