Can humans live in space? If so, for how long? What effect will zero gravity have on the body? These are just a few of the questions that were sparked by man’s first ventures into space atop repurposed nuclear ballistic missiles in the early 1960s. To answer these questions, a series of space stations were built throughout the latter half of the 20th century with names like Skylab and Mir

As one would imagine, real estate in earth orbit is pretty expensive what with having to transport all the building materials with rockets and all. To save money and to prove that people from different countries really can work together well (even when those countries include Russia and the United States), several nations signed onto a treaty to build the International Space Station.

Here are 17 things you probably didn’t know about the ISS.

NASA

1. It has been continuously occupied for over 14 years

That’s the longest uninterrupted human presence in space, and it’s still going. 

NASA

2. Five space agencies participated in the ISS project

These include NASA (United States), Roscosmos (Russia), ESA (European Union), JAXA (Japan), and CSA (Canada).

NASA

3. The ISS was pieced together slowly, one module at a time

It currently consists of 14 pressurized modules (for human habitation) and a variety of other sections. Each part was placed in orbit either by the U.S. Space Shuttle or Russian Proton and Soyuz rockets.

NASA

4. The ISS is divided between Russian and American sections

Just like Berlin. While the Russian Orbital Segment (ROS) is exclusive to Roscosmos, the United States Orbital Segment (USOS) is shared by a number of nations.

NASA

5. The International Space Station is bigger than a football field

 And it weighs nearly one million pounds. But that doesn’t mean there’s much room on the inside.

NASA

6. The ISS orbits 250 miles above the earth’s surface

That’s considered Low Earth Orbit.  
 

7. But it falls about a mile per month

It constantly has to be boosted higher by its own engines or a visiting spacecraft.

NASA

8. The ISS sees 16 sunrises a day

Since it travels at over 17,000 mph, it orbits the earth every 90 minutes. 

NASA

9. Over 200 people from 15 different nations have spent time on the ISS

It’s like a really, really nerdy U.N.

NASA

10. The ISS has a treadmill named after Stephen Colbert

Yes, that Stephen Colbert.

NASA

11. The station is designed to accommodate six crew members at a time

On board, quarters are tight and gravity-free showering, eating, and sleeping takes a bit of getting used to.

NASA

12. The ISS gets its power from an acre of solar panels

They produce around 84 kilowatts of electricity. The total solar panel area is one acre!

NASA

13. The ISS is the second brightest object in the night sky 

After the moon of course. Due to its size, proximity, and reflectiveness, it’s about as bright as Venus. It’s even visible in broad daylight—good luck finding it though.

NASA

14. The Russian Soyuz has become the only way to transport astronauts (or cosmonauts) to and from the ISS

Since the Space Shuttle was grounded forever, it's been hard to get up there. It’s time to listen to Neil deGrasse Tyson. The Russians have the upper hand here.

NASA

15. They regularly get deliveries from unmanned rockets

To keep the station’s crew fed and equipped, unmanned cargo vehicles must be launched at regular intervals. Space ice cream anyone?

NASA

16. There have been 187 spacewalks from the ISS

Many of these were to perform maintenance on the station itself, not an excuse for the astronauts to stretch their legs.

NASA

17. The ISS treats its crew to the best views in the galaxy 

Here’s a giant library of photos out the window. 


David Burbach is a motorcycle journalist by day and a space fanatic the rest of the time. You can find his sporadic Twitter musings @welivefreephoto.

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