Astrophysicist Neil deGrasse Tyson has attracted one of the world’s largest online followings with his fascinating, widely accessible insights into science and our universe. Now, Tyson invites us to go behind the scenes of his public fame by unveiling his candid correspondence with people across the globe who have sought him out in search of answers. In this hand-picked collection of 100 letters, Tyson draws upon cosmic perspectives to address a vast array of questions about science, faith, philosophy, life, and of course, Pluto.

Richard Dawkins' brilliant reformulation of the theory of natural selection has the rare distinction of having provoked as much excitement and interest outside the scientific community as within it. His theories have helped change the whole nature of the study of social biology, and have forced thousands to rethink their beliefs about life.

Welcome to the Universe is a personal guided tour of the cosmos by three of today's leading astrophysicists. Inspired by the enormously popular introductory astronomy course that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton, this book covers it all - from planets, stars, and galaxies to black holes, wormholes, and time travel.

We are in the midst of a global mental health crisis, and mental illnesses are on the rise. But what causes mental illness? And why are mental health problems so hard to treat? Drawing on decades of research, Harvard psychiatrist Dr. Chris Palmer outlines a revolutionary new understanding that for the first time unites our existing knowledge about mental illness within a single framework: mental disorders are metabolic disorders of the brain. Brain Energy will transform the field of mental health, and the lives of countless people around the world.

How the Earth Works takes you on an astonishing journey through time and space. In 48 lectures, you will look at what went into making our planet - from the big bang, to the formation of the solar system, to the subsequent evolution of Earth.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

The real stories behind the scenery of America’s national parks. For 12 years, Andrea Lankford lived in the biggest, most impressive national parks in the world, working a job she loved. She chaperoned baby sea turtles on their journey to sea. She pursued bad guys on her galloping patrol horse. She jumped into rescue helicopters bound for the heart of the Grand Canyon. She won arguments with bears. She slept with a few too many rattlesnakes. Hell yeah, it was the best job in the world! Fortunately, Andrea survived it.

From launchpad explosions to a pernicious cricket infestation to the demanding management style of Musk himself, the rise of SpaceX was beset with challenges and far from inevitable. Find out how the startup beat the odds and flew high enough to outpace their rivals... and where they're going next.

From batting averages and political polls to game shows and medical research, the real-world application of statistics continues to grow by leaps and bounds. How can we catch schools that cheat on standardized tests? How does Netflix know which movies you'll like? What is causing the rising incidence of autism? As best-selling author Charles Wheelan shows us in Naked Statistics, the right data and a few well-chosen statistical tools can help us answer these questions and more.

In this illuminating audiobook, Tyson and coauthor James Trefil, a renowned physicist and science popularizer, take on the big questions that humanity has been posing for millennia - How did life begin? What is our place in the universe? Are we alone? - and provide answers based on the most current data, observations, and theories.

In this work on a subject too often dismissed as paranormal or disreputable, Jeffrey Meldrum gives us the first book on Sasquatch to be written by a scientist with impeccable academic credentials. He gives an objective look at the facts in a field mined with hoaxes and sensationalism. Meldrum reports on the work of a team of experts from a wide variety of fields who were assembled to examine the evidence for a large, yet undiscovered, North American primate. He reviews the long history of this mystery and explains all the scientific pros and cons in a clear and accessible style.

Mankind is no longer the dominant species. When Harrison Kent suggests an outing to a remote campsite in Colorado, his friends are all eager for a few days of fun and adventure. What awaits them, though, is far more than they ever bargained for. They learn that Sasquatch is real, but these are not the shy creatures of legend. A madness has claimed them, erasing their once peaceful nature and leaving in its wake a rampaging horde of monsters that's about to descend upon the unsuspecting residents of a remote town.

Awarded a Guggenheim Fellowship to investigate the legends of Sasquatch, Yale-trained ecologist Dr. Robert Pyle treks into the unprotected wilderness of the Dark Divide near Mount St. Helens, where he discovers both a giant fossil footprint and recent tracks. On the trail of what he thought was legend, he searches out Indians who tell him of an outcast tribe, the Seeahtiks, who had not fully evolved into humans.

A young man leaves his backdoor Russian town and heads to Moscow, never to be poor again. With each day, he grows more and more desperate, until he meets an old geologist with an intriguing and surprisingly profitable offer: to join him on his trip to the depths of Siberia, the largest forest on the planet, and become a "black digger" - one of those who find and excavate mammoth tusks with the purpose of selling them as ivory to the highest bidder.

Don't believe in the existence of Bigfoot? This book might just change your mind. Over the last several decades, Oklahoma has become a hotbed of Bigfoot sightings. From the mountains of the east to the Prairies of the west, people have reportedly encountered these giant, secretive creatures. Since the mid 1990's David Wilbanks has been collecting and investigating reports of this elusive cryptid. In this book, he shares sighting reports from eyewitnesses and the investigations that followed, along with his insight and unique perspective.