Shipping enough air to the International Space Station from Earth to keep the astronauts alive would be a costly business. Here's what they do instead. by March 19, 2015 9:39 PM PDT facebook twitter linkedin googleplus more more + email tumblr stumble reddit pinterest digg Astronaut André Kuipers experimenting with a bubble of air inside a blob of water aboard the ISS. European Space Agency Of all the issues with making space habitable for humans, the most important is something you can't even see -- something you rarely even think about: breathing. A constant supply of fresh, breathable air is absolutely vital. For the International Space Station, in orbit since 1998, this is especially...
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