A Brief History of the International Space Station
From the first module launched in 1998 to a continuously inhabited outpost in low Earth orbit, the ISS is one of the most ambitious engineering projects ever built.
How ISS Telemetry Works: From Sensors to Your Screen
The ISS generates thousands of data points every second. Here is how that information travels from sensors on the station to monitoring dashboards on the ground - and to this website.
Why the ISS Altitude Keeps Changing
If you watch the altitude chart for a few days, you will notice the station slowly loses height, then suddenly jumps up. Here is why that happens.
How the ISS Recycles Water (Including Urine)
Water is one of the most precious resources in space. The ISS recycles nearly every drop - including sweat, humidity, and yes, urine - back into clean drinking water.
Life Inside the ISS: Cabin Pressure and Temperature
The ISS maintains a shirt-sleeve environment 400 km above Earth. Here is how the station keeps its crew comfortable in the vacuum of space.
ISS by the Numbers: Key Facts and Figures
The International Space Station in numbers - from its total mass to its orbital speed, power generation, and the amount of water it recycles every day.