During his six months in space, Hadfield has inspired Canadians with his Tweets, Facebook posts, YouTube videos and even interactive chats with school groups and his participation in Music Monday -- leading one million students in a rendition of the song I.S.S. (Is Somebody Singing), which he co-wrote with Barenaked Ladies frontman Ed Robertson.

Below, CTVNews.ca features some of Hadfield’s most popular posts over the past six months.(You can  see amazing photo albums on his G+ page and photo albums.)

Tell us about your own favourite post in the comments section at the bottom of this page.