Discovery of Our Galaxy

Discovery of Our Galaxy PDF Author: Charles A. Whitney
Publisher: Knopf
ISBN: 0307817091
Category : Science
Languages : en
Pages : 412

Get Book

Book Description
This is a book about the mystery and the passion, the imagination, religion, and poetry, the philosophy, the intellectual flights—and, above all, the people—that have created the science of astronomy, from Thales of Miletus predicting eclipses in the sixth century B.C. to today’s scientists probing the cosmic significance of the mysterious “black holes” discovered in 1970. With authority and charm, the distinguished Harvard astronomer Charles A. Whitney here re-creates the lives and temperaments of the great astronomers and retraces the ingenious arguments, the feats of observation and deduction, and the leaps of intuition by which they have gradually unveiled a picture of the universe and have brought us to an understanding of our own planet’s place in it. Among them: KEPLER, searching the solar system for visible evidence of the transcendent order he believed in GALILEO, constructing the first telescope and proposing the concept of universal gravitation NEWTON, paragon of logic, paradoxically driven by an unshakable belief in himself as God’s appointed prophet to create a world of mathematical certainty and thus expose the wonder of his Father in Heaven WILLIAM HERSCHEL, the nineteenth-century German who may well be considered the father of modern astronomy, first man to chart the nebulae EDWIN HUBBLE, in the present century, discovering and exploring galaxies beyond our own Finally, Professor Whitney makes clear for the layman the fascinating problems astronomers wrestle with today: the mysterious nature of quasars, strange cosmic bodies discovered in 1963; the unknown forces behind cataclysmic explosions recently glimpsed in other galaxies; the elusive nature of “interstellar dust”; the eternal question of how it all began.

The Milky Way

The Milky Way PDF Author: Moiya McTier
Publisher:
ISBN: 9781538754160
Category : Science
Languages : en
Pages : 0

Get Book

Book Description
NAMED A BEST BOOK OF 2022 BY PUBLISHERS WEEKLY NAMED A BEST AUDIOBOOK OF 2022 BY BOOKPAGE Astrophysicist and folklorist Dr. Moiya McTier channels The Milky Way in this approachable and utterly fascinating autobiography of the titular galaxy, detailing what humans have discovered about everything from its formation to its eventual death, and what more there is to learn about this galaxy we call home. After a few billion years of bearing witness to life on Earth, of watching one hundred billion humans go about their day-to-day lives, of feeling unbelievably lonely, and of hearing its own story told by others, The Milky Way would like a chance to speak for itself. All one hundred billion stars and fifty undecillion tons of gas of it. It all began some thirteen billion years ago, when clouds of gas scattered through the universe's primordial plasma just could not keep their metaphorical hands off each other. They succumbed to their gravitational attraction, and the galaxy we know as the Milky Way was born. Since then, the galaxy has watched as dark energy pushed away its first friends, as humans mythologized its name and purpose, and as galactic archaeologists have worked to determine its true age (rude). The Milky Way has absorbed supermassive (an actual technical term) black holes, made enemies of a few galactic neighbors, and mourned the deaths of countless stars. Our home galaxy has even fallen in love. After all this time, the Milky Way finally feels that it's amassed enough experience for the juicy tell-all we've all been waiting for. Its fascinating autobiography recounts the history and future of the universe in accessible but scientific detail, presenting a summary of human astronomical knowledge thus far that is unquestionably out of this world.

Spiral Structure in Galaxies

Spiral Structure in Galaxies PDF Author: Marc S Seigar
Publisher: Morgan & Claypool Publishers
ISBN: 1681746093
Category : Science
Languages : en
Pages : 84

Get Book

Book Description
How does it happen that billions of stars can cooperate to produce the beautiful spirals that characterize so many galaxies, including ours? This book reviews the history behind the discovery of spiral galaxies and the problems faced when trying to explain the existence of spiral structure within them. In the book, subjects such as galaxy morphology and structure are addressed as well as several models for spiral structure. The evidence in favor or against these models is discussed. The book ends by discussing how spiral structure can be used as a proxy for other properties of spiral galaxies, such as their dark matter content and their central supermassive black hole masses, and why this is important.

Minding the Heavens

Minding the Heavens PDF Author: Leila Belkora
Publisher: CRC Press
ISBN: 1420033921
Category : Science
Languages : en
Pages : 404

Get Book

Book Description
Today, we accept that we live on a planet circling the sun, that our sun is just one of billions of stars in the galaxy we call the Milky Way, and that our galaxy is but one of billions born out of the big bang. Yet as recently as the early twentieth century, the general public and even astronomers had vague and confused notions about what lay beyo

The Discovery of Our Galaxy

The Discovery of Our Galaxy PDF Author: Charles Allen Whitney
Publisher: Angus & Robertson
ISBN: 9780207954528
Category : Astronomy
Languages : en
Pages : 308

Get Book

Book Description


The Day We Found the Universe

The Day We Found the Universe PDF Author: Marcia Bartusiak
Publisher: Vintage
ISBN: 0307276600
Category : Science
Languages : en
Pages : 370

Get Book

Book Description
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.

Beyond the Galaxy

Beyond the Galaxy PDF Author: Ethan Siegel
Publisher: World Scientific
ISBN: 981466717X
Category : Science
Languages : en
Pages : 387

Get Book

Book Description
"A look up at the night sky reveals a treasury of wonders. Even to the naked eye, the Moon, stars, planets, the Milky Way and even a few star clusters and nebulae illuminate the heavens. For millennia, humans struggled to make sense of what's out there in the Universe, from all we can see to that which lies beyond the limits of even our most powerful telescopes. Beyond the Galaxy traces our journey from an ancient, Earth-centered Universe all the way to our modern, 21st century understanding of the cosmos. Touching on not only what we know but also how we know it, Ethan Siegel takes us to the very frontiers of modern astrophysics and cosmology, from the birth of our Universe to its ultimate fate, and everything in between."--

Finding Our Place in the Universe

Finding Our Place in the Universe PDF Author: Helene Courtois
Publisher: MIT Press
ISBN: 0262353393
Category : Science
Languages : en
Pages : 181

Get Book

Book Description
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.

Unveiling Galaxies

Unveiling Galaxies PDF Author: Jean-René Roy
Publisher: Cambridge University Press
ISBN: 1108417019
Category : Nature
Languages : en
Pages : 311

Get Book

Book Description
A thought provoking study of the powerful impact of images in guiding astronomers' understanding of galaxies through time.

The Privileged Planet

The Privileged Planet PDF Author: Guillermo Gonzalez
Publisher: Gateway Editions
ISBN: 1684510775
Category : Science
Languages : en
Pages : 466

Get Book

Book Description
Earth. The Final Frontier Contrary to popular belief, Earth is not an insignificant blip on the universe’s radar. Our world proves anything but average in Guillermo Gonzalez and Jay W. Richards’ The Privileged Planet: How Our Place in the Cosmos Is Designed for Discovery. But what exactly does Earth bring to the table? How does it prove its worth among numerous planets and constellations in the vastness of the Milky Way? In The Privileged Planet, you’ll learn about the world’s life-sustaining capabilities, water and its miraculous makeup, protection by the planetary giants, and how our planet came into existence in the first place.