Cutting-edge astrophysics that builds on Einstein's theories to find the unseen matter that fills the Universe.Dark energy. Dark matter. These strange and invisible substances don't just sound mysterious: their unexpected appearance in the cosmic census is upending long-held notions about the nature of the Universe. Astronomers have long known that the Universe is expanding, but everything they could see indicated that gravity should be slowing this spread. Instead, it appears that...

A theoretical astrophysicist explores the ideas that transformed our knowledge of the universe over the past century.The cosmos, once understood as a stagnant place, filled with the ordinary, is now a universe that is expanding at an accelerating pace, propelled by dark energy and structured by dark matter. Priyamvada Natarajan, our guide to these ideas, is someone at the forefront of the research—an astrophysicist who literally creates maps of in...

In 2000, Martin Bojowald, then a twenty-seven-year-old post-doc at Pennsylvania State University, used a relatively new theory called loop quantum gravity—a cunning combination of Einstein’s theory of gravity with quantum mechanics—to create a simple model of the universe. Loop quantum cosmology was born, and with it, a theory that managed to do something even Einstein’s general theory of relativity had failed to do—illuminate the very birth of the universe.Ever since, loop quantum...

“A great read… Goldberg is an excellent guide.”—Mario Livio, bestselling author of The Golden RatioPhysicist Dave Goldberg speeds across space, time and everything in between showing that our elegant universe—from the Higgs boson to antimatter to the most massive group of galaxies—is shaped by hidden symmetries that have driven all our recent discoveries about the universe and all the ones to come.Why is the sky dark at night? If there is anti-matt...

Einstein said that the most incomprehensible thing about the universe is that it is comprehensible. But was he right? Can the quantum theory of fields and Einstein's general theory of relativity, the two most accurate and successful theories in all of physics, be united in a single quantum theory of gravity? Can quantum and cosmos ever be combined? On this issue, two of the world's most famous physicists--Stephen Hawking (A Brief History of Time) and Roger Penrose (The Emperor...

From the most celebrated heir to Darwin comes a groundbreaking book on evolution, the summa work of Edward O. Wilson's legendary career.Where did we come from? What are we? Where are we going? In a generational work of clarity and passion, one of our greatest living scientists directly addresses these three fundamental questions of religion, philosophy, and science while “overturning the famous theory that evolution naturally encourages creatures to put family first” (Discover

"A marvelously clear and engaging account of . . . the deepest mysteries of the quantum world and [converting] them into a useful technology." —Gregory Chaitin, author of Meta Math! The Quest for OmegaWhat is entanglement? It's a connection between quantum particles, the building blocks of the universe. Once two particles are entangled, a change to one of them is reflected—instantly—in the other, be they in the same lab or light-years apart. So counterintui...

“One of today’s best popularizers of science.”—Kirkus ReviewsLoyal readers of the monthly “Universe” essays in Natural History magazine have long recognized Neil deGrasse Tyson’s talent for guiding them through the mysteries of the cosmos with stunning clarity and childlike enthusiasm. Here Tyson compiles his favorite essays across a myriad of cosmic topics. The title essay introduces readers to the physics of black holes by explaining just what would happen to yo...

Is the universe infinite, or is it just really big? Does nature abhor infinity? In startling and beautiful prose, Janna Levin's diary of unsent letters to her mother describes what we know about the shape and extent of the universe, about its beginning and its end. She grants the uninitiated access to the astounding findings of contemporary theoretical physics and makes tangible the contours of space and time—those very real curves along which apples fall and planets orbit.Levin gu...

The Nobel Prize winner offers "an ideal introduction to the theories of special and general relativity" in clear, comprehensible language ( Nature ).A renowned mathematician and philosopher , and as well as recipient of the Nobel Prize in Literature, Bertrand Russell was acclaimed for his ability to address complex subjects in accessible ways. In this classic reference book, Russell delve...

For readers of Bill Bryson, Neil deGrasse Tyson and Siddhartha Mukherjee, a wondrous, wildly ambitious, and vastly entertaining work of popular science that tells the awe-inspiring story of the elements that make up the human body, and how these building blocks of life travelled billions of miles and across billions of years to make us who we are.Every one of us contains a billion times more atoms than all the grains of sand in the earth’s deserts. If you weigh 150 pounds, you’ve g...

WHAT HAPPENED BEFORE THE BIG BANG? A physics professor offers a theory about the ultimate origin of the universe—and challenges the concept of a multiverse, string theory, and more.In the beginning was the Big Bang: an unimaginably hot fire almost 14 billion years ago in which the first elements were forged. The physical theory of the hot nascent universe—the Big Bang—was one of the most consequential developments in 20th-century science. And yet it leaves...