Canada's 'Singing astronaut' retires

The Canadian astronaut who became an out-of-this-world internet sensation, is retiring. Chris Hadfield returned to earth last month after a five month stint on board the International Space Station. While his work was, no doubt, important - most know him for his music video in space. He has also grabbed the attention of young people across Canada, making them interested in science and space exploration. Al Jazeera's Alan Fisher reports.