Summary: As commander of the International Space Station, Colonel Chris Hadfield became a social media celebrity. We spoke about the pace of progress in space exploration, and when humans can expect to start living on the moon. <br><hr><p style="color: grey;">See <a style="color: grey;" target="_blank" rel="noopener noreferrer" href="https://acast.com/privacy">acast.com/privacy</a> for privacy and opt-out information.</p>
