Imagine if The Hitchhiker's Guide to the Galaxy were a real, practical book about the mysteries of the universe . . .The Universe in Your Hand takes us on a wonder-filled journey to the surface of our dying sun, shrinks us to the size of an atom and puts us in the deathly grip of distant black holes. Along the way you might come to understand, really understand, the mind-bending science that underpins modern life, from quantum mechanics to Einstein's theory of general relativity.Through brilliant storytelling and humour rather than graphs and equations, internationally renowned astrophysicist Christophe Galfard has written an instant classic that brings the astonishing beauty of the universe to life – and takes us deep into questions about the beginning of time and the future of humanity.

Will thrill readers but rarely perplex them . . . Galfard leaves exhilarated readers eager to share in the forthcoming discoveries., Entertaining and comprehensive . . . Readers looking to expand their knowledge of physics and cosmology will find everything they need here., Part personal conversation, part travelogue, and part science primer for the non-scientist, The Universe in Your Hand is a delightful and highly educational read., If Ms. Frizzle were a physics student of Stephen Hawking, she might have written The Universe in Your Hand, a wild tour through the reaches of time and space, from the interior of a proton to the Big Bang to the rough suburbs of a black hole. It's friendly, excitable, erudite, and cosmic., A useful book for readers to visualize the complex ideas of modern physics.

Christophe Galfard holds a Ph.D. in theoretical physics from Cambridge University, where he was Professor Stephen Hawking's graduate student from 2000 to 2006, researching the so-called black hole information paradox and he co-authored George’s Secret Key to the Universe with Stephen Hawking and his daughter Lucy Hawking. His book, The Universe in Your Hand, has been translated into over twenty different languages.