The International Space Station is the most expensive thing ever built. It's about the size of a football field, it weighs a million pounds, and it's up there flying around in the sky at 17,000 mph, but... we don't really ever hear much about it, do we?
Well, so, this hour we hear about it.
Retired astronaut Scott Kelly -- who spent a record 340 consecutive days aboard the ISS -- joins us.
- Eric Berger - Senior space editor for Ars Technica
- Scott Kelly - Retired astronaut, co-author of Endurance: A Year in Space, a Lifetime of Discovery
Colin McEnroe and Chion Wolf contributed to this show.