INTRODUCTION
NOT LONG AGO I attended a talk by Chris Hadfield, the first Canadian spacewalker, commander of ISS expedition 35 and bona-fide social media sensation – the man who conquered the internet from space by tweeting about it on a near daily basis. Hadfield’s story is of ambition and success, but not one, he explained, that was born on a whim. There were two experiences that led him to pursue this career. One was a childhood spent watching Captain Kirk’s escapades in Star Trek, which availed him of the belief that space is cool. The other, the moment he watched Neil Armstrong and Buzz Aldrin set foot on the Moon in July 1969, when he realised that space exploration was not confined to the imaginings of science-fiction writers. It was a…