Zoomer Chris Hadfield, arguably the world’s favorite astronaut, is continuing his life-long mission to show those of us on earth, the earth.

The former Canadian astronaut is notable for recording the David Bowie classic “Space Oddity” while commander of the International Space Station.  He graced the cover of Zoomer Magazine in November of last year.

He has written a new book called “The Darkest Dark,” which goes on sale September 13th.  It’s a follow up to his two previous books “An Astronaut’s Guide to Life on Earth” and a book of photos of earth from space entitled “You Are Here.”

At the moment, Hatfield is leading an expedition to the Arctic involving YouTube stars, photographers, writers and musicians.