A video greeting and best wishes to ESA's Alexander Gerst from one of Canada's most well-known astronauts, Chris Hadfield. Alexander is set to launch to the ISS with the Expedition 40/41 crew on 28 May 2014 for a five-and-a-half-month science mission. Chris, now retired, completed three spaceflights and in 2001 became the first Canadian to walk in space. He served as ISS Commander during his final mission in 2013.