To the edges of human knowledge. For the budding Carl Sagans and future Richard Feynmans of the world, we have the perfect way for young people to dig deeper into the infinite world of science. Legions of scientists have marched throughout history. Their work has advanced human civilization, their discoveries shined lights into the darkness of our ignorance about the universe that we live in. Here is a text that will introduce young people to those scientists and their discoveries, as well as many of the questions that science faces today. A fascinating new fragment and entertaining new insight on every page.