Mike Massimino
Mike's extraordinary life has taken in two Space Shuttle trips, becoming the first person to tweet from space, appearing as a regular on the hit sitcom The Big Bang Theory, and becoming a bestselling author, broadcaster and academic. All of it achieved with a rare combination of purpose, humour and sense of perspective. He shares his journey to becoming an astronaut, from being rejected by NASA three times to his first flight into space, and his insights on leadership, teamwork, perseverance and what it feels like to look down on Earth while on a spacewalk.