In this book the author what it means to be physical, mental, or abstract entity, and how they relate to the concept of reality. His answers are framed in terms of a comprehensive ontology of substances, and properties inspired by Descartes, Locke, their successors, and their latter day exemplars.

What does reality encompass? Is reality exclusively physical? Or does reality include nonphysical -mental, and perhaps 'abstract' -aspects? What is it to be physical or mental, or to be an abstract entity? What are the elements of being, reality's raw materials? How is the manifest image we inherit from our culture and refine in the special sciences related to the scientific image as we have it in fundamental physics? Can physics be understood as providing a 'theory of everything', or do the various sciences make up a hierarchy corresponding to autonomous levels of reality? Is our conscious human perspective on the universe in the universe or at its limits? What, if anything, makes ordinary truths, truths of the special sciences, and truths of mathematics true? And what is it for an assertion or judgment to be 'made true'? In The Universe As We Find It, John Heil offers answers to these questions framed in terms of a comprehensive ontology of substances and properties inspired by Descartes, Locke, their successors, and their latter day exemplars. Substances are simple, lacking parts that are themselves substances. Properties are modes -particular ways particular substances are -and arrangements of propertied substances serve as truthmakers for all the truths that have truthmakers. Heil argues that the deep story about the nature of these truthmakers can only be told by fundamental physics.

Go on an awe-inspiring journey, unraveling the secrets of our universe from the tiniest particles to the vastness of space In this thought-provoking exploration, physicists Chris Ferrie and Geraint F. Lewis delve into the fundamental questions that have puzzled humanity for centuries. What sparked the birth of the universe? How did matter and energy come into existence? With clarity and precision, Ferrie and Lewis navigate the realms of quantum physics, relativity, and cosmology, providing accessible explanations that engage both novices and enthusiasts. Featuring a harmonious blend of scientific rigor and captivating storytelling, Where Did the Universe Come From? bridges the gap between complex concepts and everyday understanding. Readers will: Explore the origin of the universe and the fundamental forces that govern it. Dive into the mind-boggling realm of quantum mechanics and its implications on the cosmic scale. Uncover the mysteries of black holes, dark matter, and the enigmatic nature of the cosmos. Enjoy an engaging narrative that seamlessly integrates complex scientific concepts with accessible explanations. Whether you're an astrophysics enthusiast, a science student, or simply someone with a profound interest in the wonders of the universe, this comprehensive guide offers a rich tapestry of knowledge about the captivating wonders that surround us all.

How a team of researchers, led by the author, discovered our home galaxy's location in the universe. You are here: on Earth, which is part of the solar system, which is in the Milky Way galaxy, which itself is within the extragalactic supercluster Laniakea. And how can we pinpoint our location so precisely? For twenty years, astrophysicist Hélène Courtois surfed the cosmos with international teams of researchers, working to map our local universe. In this book, Courtois describes this quest and the discovery of our home supercluster. Courtois explains that Laniakea (which means “immense heaven” in Hawaiian) is the largest galaxy structure known to which we belong; it is huge, almost too large to comprehend—about five hundred million light-years in diameter. It contains about 100,000 large galaxies like our own, and a million smaller ones. Writing accessibly for nonspecialists, Courtois describes the visualization and analysis that allowed her team to map such large structures of the universe. She highlights the work of individual researchers, including portraits of several exceptional women astrophysicists—presenting another side of astronomy. Key ideas are highlighted in text insets; illustrations accompany the main text. The French edition of this book was named the Best Astronomy Book of 2017 by the astronomy magazine Ciel et espace. For this MIT Press English-language edition, Courtois has added descriptions of discoveries made after Laniakea: the cosmic velocity web and the Dipole and Cold Spot repellers. An engaging account of one of the most important discoveries in astrophysics in recent years, her story is a tribute to teamwork and international collaboration.

What does reality encompass? Is it exclusively physical, or does it include mental and 'abstract' aspects? What are the elements of being, reality's raw materials? This volume offers answers to these questions framed in terms of a comprehensive metaphysics of substances and properties inspired by Descartes, Locke, and their successors.

The riveting and mesmerizing story behind a watershed period in human history, the discovery of the startling size and true nature of our universe. On New Years Day in 1925, a young Edwin Hubble released his finding that our Universe was far bigger, eventually measured as a thousand trillion times larger than previously believed. Hubble’s proclamation sent shock waves through the scientific community. Six years later, in a series of meetings at Mount Wilson Observatory, Hubble and others convinced Albert Einstein that the Universe was not static but in fact expanding. Here Marcia Bartusiak reveals the key players, battles of will, clever insights, incredible technology, ground-breaking research, and wrong turns made by the early investigators of the heavens as they raced to uncover what many consider one of most significant discoveries in scientific history.

In Appearance in Reality, John Heil addresses a question at the heart of metaphysics: how are the appearances related to reality, how does what we find in the sciences comport with what we encounter in everyday experience and in the laboratory? Objects, for instance, appear to be colourful, noisy, self-contained, and massively interactive. Physics tells us they are dynamic swarms of colourless particles, or disturbances in fields, or something equally strange. Is what we experience illusory, present only in our minds? But then what are minds? Do minds elude physics? Or are the physicist's depictions mere constructs with no claim to reality? Perhaps reality is hierarchical: physics encompasses the fundamental things, the less than fundamental things are dependent on, but distinct from these. Heil's investigation advances a fourth possibility: the scientific image (what we have in physics) affords our best guide to the nature of what the appearances are appearances of.