The ISS turns 20 (and it's still Earth's most successful share house) | Watch This Space The International Space Station has racked up 20 years in space! But how do you build a spacecraft the size of a football field in low Earth orbit? And how do astronauts survive up there? Claire Reilly checks in to check it out. Watch the previous episode of Watch This Space: https://youtu.be/w1gnFSGtkms Subscribe to CNET: https://www.youtube.com/user/CNETTV CNET playlists: https://www.youtube.com/user/CNETTV/playlists Download the new CNET app: https://ift.tt/2fmiQ6l Like us on Facebook: https://ift.tt/1930vfU Follow us on Twitter: https://www.twitter.com/cnet Follow us on Instagram: http://bit.ly/2icCYYm #ISS #SpaceStation20th #spaceship