Chris Hadfield

Canadian astronaut Chris Hadfield's last trip in space in 2012 aboard the Soyuz TMA-07M made him a household name across most of the world, due largely to his video of David Bowie's "Space Oddity."

Hadfield was born and raised outside of Sarnia in southwestern Ontario. Like most children of his age he was enthralled by the lunar landin,g and in 1992 after several years as a test pilot applied to become an astronaut with the Canadian Space Agency.

In 2001, on his second shuttle flight, Hadfield became the first Canadian to walk in space while he helping to install Canadarm2. Eleven years later he flew on his third and final mission as commander of Expedition 35. It was while on this mission that Hadfield began generating media attention with his tweets of everyday life in space -- culminating with his rendition of the David Bowie classic.

Hadfield is now retired from NASA and has published a memoir, "An Astronaut's Guide to Life on Earth," and a CD, "Space Sessions: Songs from a Tin Can." Catherine Clark spoke to Chris Hadfield in Toronto.