George's Secret Key to the Universe

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George's Secret Key to the Universe
First edition
AuthorLucy Hawking, Stephen Hawking, Christophe Galfard
CountryUnited Kingdom
GenrePopular science
Published2007 Doubleday
Followed byGeorge's Cosmic Treasure Hunt 

George's Secret Key to the Universe is a 2007 children's book written by Lucy and Stephen Hawking with Christophe Galfard. The book was followed by four sequels, George's Cosmic Treasure Hunt in 2009, George and the Big Bang in 2011, George and the Unbreakable Code in 2014 and George and the Blue Moon in 2016 and George and the Ship of Time [uk] in 2018. It is intended for readers aged 10 and up.


The main characters in the book are Susan Bellis, George, Eric Bellis, Annie Bellis, Dr. Reeper, and Cosmos, the world's most powerful computer. Cosmos can draw windows allowing people to look into outer space, as well as doors which act as portals allowing travel into outer space. Written like a story, it aims to describe various aspects of the universe in a manner that is accessible to children and others new to the topic. It starts by describing atoms, stars, planets and their moons. It then goes on to describe black holes, which remains the topic of focus in the last part of the book. At frequent intervals throughout the book, there are pictures and "fact files" of the different references to universal objects, including a picture of Mars with its moons.


It was reported in June 2006 that Stephen and Lucy Hawking would be writing a children's book with Christophe Galfard, with the aim of "explaining theoretical physics in an accessible way to youngsters."[1] The book, whose title was announced in June 2007,[2] was released on October 23, 2007.[3]


The Independent gave the book a positive review, calling it an "excellent book" that "will do wonders to raise enthusiasm for physics among young readers". It did, however, add that the storytelling has some rough edges, and noted the book had a couple of scientific inaccuracies.[4] gave the book 3½ out of 5, stating "Recommended for kids, but not for adults. The story in this book is a bit contrived, but as a book intended to teach children the basics of astronomy, astrophysics, cosmology, and other principles that govern our universe, it does a fair job."[5] The reviewer from Kirkus Reviews was more critical, accusing the authors of setting aside the laws of physics whenever convenient to the story. The reviewer concluded that they expected the book to sell well, but that it "doesn’t show much respect for its target audience".[3] Common Sense Media gave the book 2 stars out of 5, stating "The nonfiction parts are fine: good information, clearly told, with some spectacular photos. But surprisingly, much of the fictional story isn't scientifically accurate. This might be forgivable in straight sci-fi or fantasy ... but in a book that purports to teach the basics of astronomy and physics, it's just confusing -- how are young readers to know what's true, what's theoretical, and what's just plain nonsense?"[6]

See also[edit]


  1. ^ "Stephen Hawking writing children's book". BBC. June 13, 2006. Retrieved November 21, 2012.
  2. ^ "Stephen Hawking writing children's book". Jerusalem Post. June 19, 2007. Retrieved November 21, 2012.
  3. ^ a b "George's Secret Key to the Universe". October 1, 2007. Retrieved November 21, 2012.
  4. ^ "George's Secret Key to the Universe, by Veronica and Stephen Hawking". The Independent. October 17, 2007. Retrieved November 21, 2012.
  5. ^ Jones, Andrew Z. "George's Secret Key to the Universe by Lucy & Stephen Hawking". Retrieved November 21, 2012.
  6. ^ Berman, Matt. "George's Secret Key to the Universe". Common Sense Media. Retrieved November 21, 2012.

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