What It's Like To Live And Work On The International Space Station

You may have seen it moving swiftly across the night sky, or tracked it using NASA's Spot The Station, and wondered: What is life like on the International Space Station? And who is living on the International Space Station? The ISS is a joint project between the European Space Agency and four partner nations: the United States, Russia, Japan, and Canada.

It makes its home in low Earth orbit approximately 250 miles above the Earth's surface, traveling at just under 5 miles per second - that's approximately 17,000 miles per hour. It is the most expensive single item ever built, costing an estimated $150 billion.

Those lucky enough to board this otherworldly vessel experience spectacular sunrises and sunsets approximately every 45 minutes, and the research on the ISS is conducted in a one-of-a-kind laboratory - outer space. It may even hold the key to humankind's next great space ambition: a mission to Mars with humans aboard. While waiting for that to happen, NASA and astronauts are not shy about answering the question: "What is it like to live on the International Space Station?"