Now fully updated to reflect the many scientific discoveries in the last twenty years since this book was first published, it explains among much else:

* why Pluto is no longer a planet
* how the number of moons in the solar system has more than doubled in 20 years
* how scientists used advances in genetics to discover previously unknown species of early humans
* why we still don’t know what most of the universe is made of
* how the little Higgs boson transformed physics

This journey through time and space will inform a new generation of readers, young and old, as well as those who read this book on first publication with a new perspective based on what we know now.

Written in his inimitable style, Bryson makes complex subjects fascinating and accessible to everyone with an interest in the world around them.