International Space Station turns 20, story of evolution goes on

Reaching for the stars, the International Space Station celebrates 20 years in orbit.

Twenty years ago, the most ambitious construction project in the history of humanity – the International Space Station (ISS) – began with the launch of a Russian Proton rocket on November 20, 1998.

Two weeks later, NASA followed suit with its own component – Unity.

It is a beacon in the night sky that should already be out of use. But five years after the ISS mission was due to end, it continues to be a stellar success.

The main partners – Russians, Americans and the European Space Agency – have agreed on funding through until 2024.

Al Jazeera’s Alan Fisher reports.