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What happens on the ISS?

The International Space Station is one of the most expensive objects ever made by humans and for more than 20 years it has been continuously occupied by astronauts from around the world.

So what’s it like to live on the ISS while it travels at a speed of five miles per second?

Former NASA astronaut and International Space Station Commander Leroy Chiao joins William Shatner on this week's episode of 'I Don't Understand' to talk about what it is like to live on the ISS.

PODCAST: https://soundcloud.com/rttv/sets/i-don-t-understand-with-william-shatner