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.

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.

Hilarious, fascinating, and a roller coaster of dizzying, historical what-ifs, Napoleon's Hemorrhoids is a potpourri for serious historians and casual history buffs. In one of Phil Mason's many revelations, you'll learn that Communist jets were two minutes away from opening fire on American planes during the Cuban missile crisis, when they had to turn back as they were running out of fuel. You'll discover that before the Battle of Waterloo, Napoleon's painful hemorrhoids prevented him from mounting his horse to survey the battlefield.

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 do today's most successful tech companies - Amazon, Google, Facebook, Netflix, Tesla - design, develop, and deploy the products that have earned the love of literally billions of people around the world? Perhaps surprisingly, they do it very differently from the vast majority of tech companies. In Inspired, technology product management thought leader Marty Cagan provides listeners with a master class in how to structure and staff a vibrant and successful product organization and how to discover and deliver technology products that your customers will love.

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.

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.

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.

A covert group is infiltrating the world’s most secure bio-weapons research sites. All across the country, people are acting as human ‘disease bombs’ by infecting themselves and walking into public places. And heavily armed groups of illegal private soldiers are massing for some unknown strike. Joe Ledger and the members of Rogue Team International, still reeling from the devastation and heartbreaking losses of their last mission, are forced into relentless action to try and save the country, if not the entire world.

The Ascendant Humans have conquered Earth and banished mankind to a distant star. There, the refugees war in space over the resources rationed to them. In an orbital habitat, Commander Rylan Shaw labors against the inter-colony arms trafficking when an informant gives him horrific news. The ruthless cartel boss, Lilith, has stockpiled weapons of mass destruction. Worse, she has permission from the Wardens, humanity's robot overlords, to unleash them upon the system.

Over the past few decades, a handful of scientists have been racing to explain a disturbing aspect of our universe: only four percent of it consists of the matter that makes up you, me, our books, and every star and planet. The rest is completely unknown. Richard Panek tells the dramatic story of the quest to find this “dark” matter and an even more bizarre substance called “dark energy”. This is perhaps the greatest mystery in all of science, and solving it will bring fame, funding, and certainly a Nobel Prize.

Interest in psychedelic mushrooms has never been greater–or the science less definitive. Popular science writer and amateur mycologist Eugenia Bone reports on the state of psychedelics today, from microdosing to heroic trips, illustrating how “citizen science” and anecdotal accounts of the mushrooms’ benefits are leading the new wave of scientific inquiry into psilocybin. With her signature blend of first-person narrative and scientific rigor, Bone breaks down just how the complicated cocktail of psychoactive compounds is thought to interact with our brain chemistry.

The Lucians have faltered in their fight against the cruel Ascendant overlord, Cef. Now, a handful of survivors from a failed liberation campaign have been called to a Final Challenge in a madman’s arena. For Rylan, Geeta, Scott and Aila, this may be their only opportunity to make peace with those they love. It will certainly be their last, best chance to save mankind from an endless cycle of genocidal slaughter.

Dr. Xin Rou is a Chinese researcher working at the IceCube neutrino experiment at the South Pole. On lucky days a single flash might signal the passage of a ghostly interstellar particle. Suddenly, IceCube’s entire array lights up. A million detectors at once. Which is impossible. The Antarctic sky is clear and calm—but she is already running for the door.

Contains three complete, novel-length audiobooks in the Middle Falls Time Travel series.

By the star physicist and author of multiple #1 Sunday Times bestsellers, a major and definitive narrative work on black holes and how they can help us understand the universe.

The Ember War, book 1: The Earth is doomed. Humanity has a chance. In the near future, an alien probe arrives on Earth with a pivotal mission: to determine if humanity has what it takes to survive the impending invasion by a merciless armada. The probe discovers Marc Ibarra, a young inventor who holds the key to a daring gambit that could save a fraction of Earth's population. Humanity's only chance lies with Ibarra's ability to keep a terrible secret and engineer the planet down the narrow path to survival.

When Newton discovered the law of gravity, he unified the rules governing the heavens and the Earth. Since then, physicists have been placing new forces into ever-grander theories. But perhaps the ultimate challenge is achieving a monumental synthesis of the two remaining theories—relativity and the quantum theory. This would be the crowning achievement of science, a profound merging of all the forces of nature into one beautiful, magnificent equation to unlock the deepest mysteries in science: What happened before the Big Bang?

War heroes aren't usually called out of semi-retirement and sent to the far reaches of the galaxy for a routine investigation. So when Colonel Carl Butler answers the call from an old and powerful friend, he knows it's something big - and he's not being told the whole story. A high councilor's son has gone MIA out of Cappa Base, the space station orbiting a battle-ravaged planet. The young lieutenant had been wounded and evacuated - but there's no record of him having ever arrived at hospital command.

In a field known for startling ideas, the Many-Worlds Interpretation (MWI) of quantum mechanics may take the prize. It holds that parallel to our own world are a large number of other universes, almost identical to ours but with small variations. Copies of each of us inhabit a myriad of these worlds. But they are not us exactly; they share our past history, but they are different people who have unique futures. Although these realms are invisible and can’t communicate with each other, prominent physicists are convinced they must exist.

Through clear-eyed essays and vibrant conversations, infused with data and poetry, Ayana Elizabeth Johnson guides us through solutions and possibilities at the nexus of science, policy, culture, and justice. Visionary farmers and financiers, architects and advocates, help us conjure a flourishing future, one worth the effort it will take—from every one of us, with whatever we have to offer—to create.

Nick Mason has already spent five years inside a maximum security prison when an offer comes that will grant his release 20 years early. He accepts - but the deal comes with a terrible price. Now, back on the streets, Nick Mason has a new house, a new car, money to burn, and a beautiful roommate. He's returned to society, but he's still a prisoner. Whenever his cell phone rings, day or night, Nick must answer it and follow whatever order he is given.

Of all the things humans rely on plants for - sustenance, beauty, medicine, fragrance, flavor, fiber - surely the most curious is our use of them to change consciousness: to stimulate or calm, fiddle with or completely alter, the qualities of our mental experience. Take coffee and tea: People around the world rely on caffeine to sharpen their minds. But we do not usually think of caffeine as a drug, or our daily use as an addiction, because it is legal and socially acceptable.