From its beginnings, astronomy has attempted to explain not only what the universe is and how it works, but also its origins, evolution, and future. Richly illu

The award-winning former editor of Science News shows that one of the most fascinating and controversial ideas in contemporary cosmology—the existence of mult

Over 1 Million Copies Sold! Have you ever wondered . . . ? What is Heaven really going to be like? What will we look like? What will we do every day? Won’t He

A theoretical astrophysicist explores the ideas that transformed our knowledge of the universe over the past century. The cosmos, once understood as a stagnant

Why do some people pray in agreement with God’s will, heart and timing, yet the desired answers do not come? Why would God not respond when we pray from the e