Explores fundamental philosophical and scientific questions about the nature of life, particularly in relation to the search for extraterrestrial life.

No scientific quest is as compelling as the search for the key to understand the universe—the elusive unified “Theory of Everything”—a theory so concise

Bringing together the latest scientific advances and some of the most enduring subtle philosophical puzzles and problems, this book collects original historical

For millennia, shamans and philosophers, believers and nonbelievers, artists and scientists have tried to make sense of our existence by suggesting that everyth

"This is science writing as wonder and as inspiration." —The Wall Street Journal Wall Street Journal From one of the most influential scientists of our time,