Chris Hadfield is one of the world's most seasoned and accomplished astronauts, and is the author of the #1 international bestseller, An Astronaut's Guide to Life on Earth and You Are Here: Around the World in 92 Minutes. The top graduate of the U.S. Air Force Test Pilot School in 1988 and U.S. Navy test pilot of the year in 1991, Hadfield was selected by the Canadian Space Agency to be an astronaut in 1992. He was CAPCOM for 25 Shuttle launches and served as Director of NASA Operations in Star City, Russia, Chief of Robotics for the NASA Astronaut Office in Houston, and Chief of International Space Station Operations. 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 music video, a zero-gravity version of David Bowie's "Space Oddity," has received more than 30 million views online. His TED talk, delivered in March 2014, has been viewed almost four million times. This is his first picture book.

Kate Fillion is a bestselling author and journalist who lives in Irvington, New York.

Terry Fan received his formal art training at Ontario College of Art and Design in Toronto. His work is a blend of traditional and contemporary techniques, using ink or graphite mixed with digital. He spends his days (and nights) creating magical paintings, portraits and prints. Along with his brother, Eric, Terry is one of the New York Times bestselling Fan Brothers whose picture books include The Barnabus Project, Barnaby Unboxed!, The Night Gardener and Ocean Meets Sky. Eric and Terry also illustrated Dashka Slater's The Antlered Ship, Beth Ferry's The Scarecrow and Beth Ferry's Growing Home. Recipients of the prestigious Sendak Fellowship, they have received a Governor General’s Literary Award and the Dilys Evans Founder’s Award from the Society of Illustrators, and were also shortlisted for the Kate Greenaway Medal among other honors.

Eric Fan is an artist and writer who lives in Toronto, Canada. He attended the Ontario College of Art and Design where he studied illustration, sculpture and film. He has a passion for vintage bikes, clockwork contraptions and impossible dreams. Along with his brother, Terry, Eric is one of the New York Times bestselling Fan Brothers whose picture books include The Barnabus Project, Barnaby Unboxed!, The Night Gardener and Ocean Meets Sky. Eric and Terry also illustrated Dashka Slater's The Antlered Ship, Beth Ferry's The Scarecrow and Beth Ferry's Growing Home. Recipients of the prestigious Sendak Fellowship, they have received a Governor General’s Literary Award and the Dilys Evans Founder’s Award from the Society of Illustrators, and were also shortlisted for the Kate Greenaway Medal among other honors.