The ISS wasn’t created by just one nation but an extensive collection of different national space agencies.
Some modules were created by the US, and others were created by Russia, Europe, Japan, and Canada throughout the 90s and early 2000s.
The actual assembly began in 1998 when the first module, the Russian-made Zarya, was launched on a Russian Proon rocket.
The rest of the modules were all ferried to the ISS by NASA Space Shuttles.
By 2011, the space station had accumulated over 150 different components and fourteen pressurized modules, with astronauts spending more than 1,000 hours in space to assemble all the pieces.
Five more modules were added over the next eleven years, with more modules already in the works.
This happens because the ISS orbits the Earth once every 1.5 hours. As you can imagine, this could completely wreak havoc on the astronauts' sleeping schedules.
Because there is only microgravity on the ISS, astronauts simply cannot lie in bed.
Instead, they sleep in sleeping bags attached to the walls of the crew cabins—small compartments large enough for a person to fit inside.
4. The ISS has a robot crew member.
The ISS wouldn't be a proper spaceship if it didn't also have a robot crew member.
In an effort to make good on our fantasies of robot space companions like Lieutenant Commander Data and the simply named Robot from "Lost in Space," scientists at NASA's Johnson Space Center (JSC) crafted Robonaut 2 as the first synthetic member of the station's crew.
5. The ISS can't see you, but you can see it.
Astronauts aboard the station can see a lot through the cupola, including large features, which are clearly visible. However, it's not possible to perceive individual people from roughly 250 miles up. Seeing the station with the naked eye is a lot easier.
As long as the sun isn't out, it's likely you'll be able to see the International Space Station in the sky. The station's exterior, mostly its solar panel arrays, reflects a significant portion of sunlight as it orbits across the sky.
6. The ISS will remain in operation until at least 2030, and it might get a neighbor .
On January 31, 2022, NASA confirmed that activities on the ISS have been extended to 2030. After that, the future of the station is unclear. Roscosmos has expressed a desire to exit the station due to aging technology, which is now beyond its initial mission design. It could happen as early as 2025.
Even if the Russian space agency leaves the ISS, they won't be completely out of the space station game. Plans for a new station to be known as the Russian Orbital Service Station (ROSS) are in progress.
7. In the space of just 24 hours, the space station makes 16 orbits of Earth, travelling through 16 sunrises and sunsets .
As per the data given by NASA, the ISS measures 109 metres long and 75 metres wide, similar to the length of an American football field.
Besides, it weighs 420 tonnes and travels around the Earth at extreme speed. The ISS orbits the earth at a speed of over twenty-seven thousand kilometres per hour and thus completes a full revolution in just 90 minutes.
Breaking down the data, the station makes 16 orbits of Earth and thus, travels through 16 sunrises and sunsets in just 24 hours .
The ISS is a high tech laboratory, orbiting the Earth at around 17,000 mph at almost 300 miles up in space, where astronauts live, work and do experiments.
To look at it, you’d think it was a huge Meccano model, and in a way it is – a multi-billion dollar model built over many years, by different countries.
Its pieces were all joined together in space, making it Mankind’s most ambitious, complicated and risky construction project ever.
If you look at photos of the ISS you’ll see it looks nothing like the graceful, wheel-shaped space stations seen in science fiction films like “2001 A Space Odyssey”.
That’s because a) we can’t afford to build one of those, and b) in real life, spacecraft don’t need to be pretty, they just have to work.
The ISS is made of many different parts, and has bits sticking out of it everywhere.
The space station has an internal pressurized volume equal that of a Boeing 747.
More than 50 computers control the systems on the space station.
More than 3 million lines of software code on the ground support more than 1.5 million lines of flight software code.
The ISS is an engineering marvel: the largest structure ever built in space.
It weighs around 420,000kg (more than 320 cars) and at 109m is longer than a football pitch.
Modular in design and constructed over 13 years, it has 8 solar arrays, a main truss 'backbone' and pressurised habitation modules .