For as long as humans have lived, we have lived beneath the stars. But under the glow of today’s artificial lighting, we have lost the intimacy our ancestors once shared with the cosmos. In Starborn, cosmologist Roberto Trotta reveals how stargazing has shaped the course of human civilization. The stars have served as our timekeepers, our navigators, our muses—they were once even our gods. How radically different would we be, Trotta also asks, if our ancestors had looked up to the night sky and seen… nothing?

One of the great insights of science is that the universe has an underlying order. The supreme goal of physicists is to understand this order through laws that describe the behavior of the most basic particles and the forces between them. For centuries, we have searched for these laws by studying the results of experiments. Since the 1970s, however, experiments at the world's most powerful atom-smashers have offered few new clues. So some of the world's leading physicists have looked to a different source of insight: modern mathematics.

Cognitive decline is not your destiny. You can improve your brain function through small steps taken every day. Heal Your Gut, Save Your Brain, by gastroenterologist and health advocate Dr. Partha Nandi, highlights the latest research on the gut-brain connection and gives you a clear protocol for maintaining brain health and slowing or reducing the effects of neurodegenerative diseases as you age.

Sixteenth-century Europe was a hostile world dominated by court politics and patriarchal structures–and yet against all odds, two women rose to power: Elizabeth I and Catherine de Medici. Much has been written about these shrewd and strategic sovereigns, but though their l legacies have been heavily scrutinized, nothing has been said of their complicated relationship—thirty years of camaraderie, competition, and conflict that forever changed the face of Europe.

Amid the ravages of economic depression, Germans in the early 1930s were pulled to political extremes both left and right. Then, in the spring of 1933, Germany turned itself inside out, from a deeply divided republic into a one-party dictatorship. In Hitler's First Hundred Days, award-winning historian Peter Fritzsche offers a probing account of the pivotal moments when the majority of Germans seemed, all at once, to join the Nazis to construct the Third Reich.