Throughout most of human history, our ancestors have done rather poorly when dealing with acts of violence. To cite but one of many shocking examples, let us pe

From deep within the human body to distant nebulae in outer space, there are worlds all around us that are smaller, faster, and farther than the unaided eye can

President Theodore Roosevelt called Jacob Riis "the best American I ever knew." The pioneering photojournalist, an immigrant from Denmark, drew attention to the

“How do alien, faraway worlds reveal their existence to Earthlings? Let Donald Goldsmith count the ways. As an experienced astronomer and a gifted storyteller

Introduces a world invisible to the naked eye and discusses the different types of microscopes available, the steps for the preparation and study of specimens,