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 Héln̈e Courtois surfed the cosmos with an international team 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 "immeasurable heaven" in Hawaiian) is the largest galaxy structure known to which we belong; it is huge, almost too large to comprehend--about five 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 the 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 how these scientists made one of the most important discoveries in astrophysics in recent years, her story is a tribute to teamwork and international collaboration.
Details the science behind the Copernican Revolution, the transition from the Earth-centered cosmos to a modern understanding of planetary orbits.
Readers will love discovering new information in this chapter book while also reinforcing learned skills with comprehension and extension activities.
Sun Kwok tells this story in an entertaining and fascinating way. Since the beginning of human civilization, people have wondered about the structure of the cosmos and our place in the Universe.
Our Place in the Universe tells the story of our world, formation of the first galaxies and stars formed from great clouds containing the primordial elements made in the first few minutes; birth of stars, their lives and deaths in fiery ...
For anyone who has ever stared at the starry night sky and wondered how we humans on Earth fit into the big picture, this book is an essential roadmap.
The discovery of Uranus generated great interest in Bode's law3. The law predicts that there should be a planet between the orbits of Mars and Jupiter, and Bode advocated for a search for this missing planet.
And more than anyone else, this revolution is the work of one man, Stuart Kauffman, a MacArthur Fellow and visionary pioneer of the new science of complexity.
An engaging account of our quest for habitable environments, recounting fascinating recent discoveries and providing insight into future space missions.
Everything you ever wanted to know about the universe - and our place within it - in one mind-expanding and highly accessible book.
Now available in paperback. Most eight-year-olds are about five times as tall as this book . . . but only half as tall as an ostrich, which is half as tall as a giraffe . . . twenty times smaller than a California Redwood!