With more than 52 million pet dogs in America today, it's clear we are a nation of unabashed dog lovers. Yet the relationship between dogs and humans remains a fascinating mystery, as no one really...

A fascinating exploration of the science of the impossible—from death rays and force fields to invisibility cloaks—revealing to what extent such technologies might be achievable decades or millennia...

Where does rain come from? What are clouds made of? Follow water as it makes its way through the entire water cycle. Then go back in time to the very first rainfall millions of years ago. Discover...

Discover the impact of the human footprint in The World Without Us. Take us off the Earth and what traces of us would linger? And which would disappear? Alan Weisman writes about which...