How much of Earth can astronauts on the ISS see? Revisit the conversation between StarTalk Radio host Neil deGrasse Tyson and NASA Astronaut Shannon Walker as she floats above the Earth and tells us what it’s like to view the planet through the ISS cupola viewing station. If you like this track, be sure to check out the whole “The International Space Station: A Space Age Cathedral” episode at http://www.startalkradio.net/show/the-international-space-station-a-space-age-cathedral/.