Chris Hadfield, one of the world's most seasoned and accomplished astronauts, is the author of the #1 international bestseller An Astronaut's Guide to Life on Earth. The top graduate of the U.S. Air Force Test Pilot School in 1988 and the U.S. Navy Test Pilot of the Year in 1991, Hadfield was selected to be an astronaut in 1992. He was Chief CAPCOM at NASA for twenty-five shuttle missions and served as Director of Operations for NASA in Star City, Russia, from 2001 to 2003; Chief of Robotics for the NASA Astronaut Office in Houston from 2003 to 2006; and Chief of International Space Station Operations for the NASA Astronaut Office from 2006 to 2008.

Hadfield most recently served as Commander of the International Space Station, where, while conducting a record-setting number of scientific experiments and overseeing an emergency spacewalk, he gained worldwide acclaim for his breathtaking photographs and educational videos about life in space. His online videos, including a zero-gravity version of David Bowie's "Space Oddity," have collectively received more than fifty million views.