From 1799 to 1804, German naturalist and adventurer Alexander von Humboldt conducted the first extensive scientific exploration of Latin America. At the completion of his arduous 6,000-mile journey, he was feted by Thomas Jefferson, presented to Napoleon and, after the publication of his findings, hailed as the greatest scientific genius of his age. Humboldt’s Cosmos tells the story of this extraordinary man who was equal parts Einstein and Livingstone, and of the adventure that defined his life. Gerard Helferich vividly recounts Humboldt’s expedition through the Amazon, over the Andes, and across Mexico and Cuba, highlighting his paradigm-changing discoveries along the way. During the course of the expedition, Humboldt cataloged more than 60,000 plants, set an altitude record climbing the volcano Chimborazo, and introduced millions of Europeans and Americans to the great cultures of the Inca and the Aztecs. In the process, he also revolutionized geology and laid the groundwork for modern sciences such as climatology, oceanography, and geography. His contributions would profoundly influence future greats such as Charles Darwin and shape the course of science for centuries to come. Humboldt’s Cosmos is a dramatic tribute to one of history’s most audacious adventurers, who, as Stephen Jay Gould noted, "may well have been the world’s most famous and influential intellectual."

The modern materialist approach to life has conspicuously failed to explain such central mind-related features of our world as consciousness, intentionality, meaning, and value. This failure to account for something so integral to nature as mind, argues philosopher Thomas Nagel, is a major problem, threatening to unravel the entire naturalistic world picture, extending to biology, evolutionary theory, and cosmology. Since minds are features of biological systems that have developed through evolution, the standard materialist version of evolutionary biology is fundamentally incomplete. And the cosmological history that led to the origin of life and the coming into existence of the conditions for evolution cannot be a merely materialist history, either. An adequate conception of nature would have to explain the appearance in the universe of materially irreducible conscious minds, as such. Nagel's skepticism is not based on religious belief or on a belief in any definite alternative. In Mind and Cosmos, he does suggest that if the materialist account is wrong, then principles of a different kind may also be at work in the history of nature, principles of the growth of order that are in their logical form teleological rather than mechanistic. In spite of the great achievements of the physical sciences, reductive materialism is a world view ripe for displacement. Nagel shows that to recognize its limits is the first step in looking for alternatives, or at least in being open to their possibility.

Explorer, scientist, writer, and humanist, Alexander von Humboldt was the most famous intellectual of the age that began with Napoleon and ended with Darwin. With Cosmos, the book that crowned his career, Humboldt offered to the world his vision of humans and nature as integrated halves of a single whole. In it, Humboldt espoused the idea that, while the universe of nature exists apart from human purpose, its beauty and order, the very idea of the whole it composes, are human achievements: cosmos comes into being in the dance of world and mind, subject and object, science and poetry. Humboldt’s science laid the foundations for ecology and inspired the theories of his most important scientific disciple, Charles Darwin. In the United States, his ideas shaped the work of Emerson, Thoreau, Poe, and Whitman. They helped spark the American environmental movement through followers like John Muir and George Perkins Marsh. And they even bolstered efforts to free the slaves and honor the rights of Indians. Laura Dassow Walls here traces Humboldt’s ideas for Cosmos to his 1799 journey to the Americas, where he first experienced the diversity of nature and of the world’s peoples—and envisioned a new cosmopolitanism that would link ideas, disciplines, and nations into a global web of knowledge and cultures. In reclaiming Humboldt’s transcultural and transdisciplinary project, Walls situates America in a lively and contested field of ideas, actions, and interests, and reaches beyond to a new worldview that integrates the natural and social sciences, the arts, and the humanities. To the end of his life, Humboldt called himself “half an American,” but ironically his legacy has largely faded in the United States. The Passage to Cosmos will reintroduce this seminal thinker to a new audience and return America to its rightful place in the story of his life, work, and enduring legacy.

NATIONAL BESTSELLER • From one of the world’s leading physicists and author of the Pulitzer Prize finalist The Elegant Universe, comes “an astonishing ride” through the universe (The New York Times) that makes us look at reality in a completely different way. Space and time form the very fabric of the cosmos. Yet they remain among the most mysterious of concepts. Is space an entity? Why does time have a direction? Could the universe exist without space and time? Can we travel to the past? Greene has set himself a daunting task: to explain non-intuitive, mathematical concepts like String Theory, the Heisenberg Uncertainty Principle, and Inflationary Cosmology with analogies drawn from common experience. From Newton’s unchanging realm in which space and time are absolute, to Einstein’s fluid conception of spacetime, to quantum mechanics’ entangled arena where vastly distant objects can instantaneously coordinate their behavior, Greene takes us all, regardless of our scientific backgrounds, on an irresistible and revelatory journey to the new layers of reality that modern physics has discovered lying just beneath the surface of our everyday world.

Two world-renowned scientists present an audacious new vision of the cosmos that “steals the thunder from the Big Bang theory.” —Wall Street Journal The Big Bang theory—widely regarded as the leading explanation for the origin of the universe—posits that space and time sprang into being about 14 billion years ago in a hot, expanding fireball of nearly infinite density. Over the last three decades the theory has been repeatedly revised to address such issues as how galaxies and stars first formed and why the expansion of the universe is speeding up today. Furthermore, an explanation has yet to be found for what caused the Big Bang in the first place. In Endless Universe, Paul J. Steinhardt and Neil Turok, both distinguished theoretical physicists, present a bold new cosmology. Steinhardt and Turok “contend that what we think of as the moment of creation was simply part of an infinite cycle of titanic collisions between our universe and a parallel world” (Discover). They recount the remarkable developments in astronomy, particle physics, and superstring theory that form the basis for their groundbreaking “Cyclic Universe” theory. According to this theory, the Big Bang was not the beginning of time but the bridge to a past filled with endlessly repeating cycles of evolution, each accompanied by the creation of new matter and the formation of new galaxies, stars, and planets. Endless Universe provides answers to longstanding problems with the Big Bang model, while offering a provocative new view of both the past and the future of the cosmos. It is a “theory that could solve the cosmic mystery” (USA Today).