This book has been graded for interest at 4-7 years.

There are 48 pages in this book. This book was published 2016 by Little, Brown Books for Young Readers .

Brothers Eric Fan and Terry Fan received their formal art training at the Ontario College of Art and Design in Toronto. Their work is a blend of traditional and contemporary techniques, using ink or graphite mixed with digital. They are authors of the critically acclaimed picture book The Night Gardener. They have illustrated such books as The Thing About Jellyfish, One Amazing Elephant and The Antlered Ship. Chris Hadfield is one of the world's most seasoned and accomplished astronauts, and is the author of the number one international bestseller, An Astronaut's Guide to Life on Earth, and You Are Here: Around the World in 92 Minutes . The Darkest Dark is Chris's first picture book. Hadfield served as Commander of the International Space Station where, while conducting a record-breaking 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 and he judged the TV series Astronauts: Do You Have What It Takes?