Imagine if The Hitchhiker's Guide to the Galaxy were a real manual.

Internationally renowned physicist and bestselling author Christophe Galfard takes us on a wonderful journey through the past, present, and future of the universe—all from the comfort of a sofa.

The Universe in Your Hand explores some of the most profound and astonishing ideas of our time—quantum mechanics, general relativity, time travel, parallel realities, and multiple universes—with the promise that you only need one equation: the legendary E=mc². Christophe Galfard, who studied black holes and the origins of our universe as a PhD student of Stephen Hawking, tells a narrative story about the power of our incredible universe, transporting us to the surface of our dying sun, placing us in the deadly grip of a black hole, and shrinking us down to subatomic size to explore the tiny world of particles and quantum forces.

Written from the perspective of the latest knowledge, The Universe in Your Hand allows readers to truly understand the astonishing secrets underlying modern science while questioning our place in the universe and the beginnings of time.

The Universe in Your Hand is the perfect introductory book for anyone curious about our extraordinary universe.

A well-written and highly accessible journey through what we know about modern astronomy and physics. Part personal entertainment, part travelogue, and part science introduction for the non-scientist, The Universe in Your Hand is an enjoyable and highly educational read.

“A wild tour through the vastness of time and space, from the inside of a proton to the Big Bang to the rough suburbs of a black hole. It’s friendly, exciting, learned, and cosmic.”.