Author: Tom Siegfried
Publisher: Harvard University Press
ISBN: 067497588X
Category : Science
Languages : en
Pages : 353
Book Description
The award-winning former editor of Science News shows that one of the most fascinating and controversial ideas in contemporary cosmology—the existence of multiple parallel universes—has a long and divisive history that continues to this day. We often consider the universe to encompass everything that exists, but some scientists have come to believe that the vast, expanding universe we inhabit may be just one of many. The totality of those parallel universes, still for some the stuff of science fiction, has come to be known as the multiverse. The concept of the multiverse, exotic as it may be, isn’t actually new. In The Number of the Heavens, veteran science journalist Tom Siegfried traces the history of this controversial idea from antiquity to the present. Ancient Greek philosophers first raised the possibility of multiple universes, but Aristotle insisted on one and only one cosmos. Then in 1277 the bishop of Paris declared it heresy to teach that God could not create as many universes as he pleased, unleashing fervent philosophical debate about whether there might exist a “plurality of worlds.” As the Middle Ages gave way to the Renaissance, the philosophical debates became more scientific. René Descartes declared “the number of the heavens” to be indefinitely large, and as notions of the known universe expanded from our solar system to our galaxy, the debate about its multiplicity was repeatedly recast. In the 1980s, new theories about the big bang reignited interest in the multiverse. Today the controversy continues, as cosmologists and physicists explore the possibility of many big bangs, extra dimensions of space, and a set of branching, parallel universes. This engrossing story offers deep lessons about the nature of science and the quest to understand the universe.
The Number of the Heavens
Author: Tom Siegfried
Publisher: Harvard University Press
ISBN: 067497588X
Category : Science
Languages : en
Pages : 353
Book Description
The award-winning former editor of Science News shows that one of the most fascinating and controversial ideas in contemporary cosmology—the existence of multiple parallel universes—has a long and divisive history that continues to this day. We often consider the universe to encompass everything that exists, but some scientists have come to believe that the vast, expanding universe we inhabit may be just one of many. The totality of those parallel universes, still for some the stuff of science fiction, has come to be known as the multiverse. The concept of the multiverse, exotic as it may be, isn’t actually new. In The Number of the Heavens, veteran science journalist Tom Siegfried traces the history of this controversial idea from antiquity to the present. Ancient Greek philosophers first raised the possibility of multiple universes, but Aristotle insisted on one and only one cosmos. Then in 1277 the bishop of Paris declared it heresy to teach that God could not create as many universes as he pleased, unleashing fervent philosophical debate about whether there might exist a “plurality of worlds.” As the Middle Ages gave way to the Renaissance, the philosophical debates became more scientific. René Descartes declared “the number of the heavens” to be indefinitely large, and as notions of the known universe expanded from our solar system to our galaxy, the debate about its multiplicity was repeatedly recast. In the 1980s, new theories about the big bang reignited interest in the multiverse. Today the controversy continues, as cosmologists and physicists explore the possibility of many big bangs, extra dimensions of space, and a set of branching, parallel universes. This engrossing story offers deep lessons about the nature of science and the quest to understand the universe.
Publisher: Harvard University Press
ISBN: 067497588X
Category : Science
Languages : en
Pages : 353
Book Description
The award-winning former editor of Science News shows that one of the most fascinating and controversial ideas in contemporary cosmology—the existence of multiple parallel universes—has a long and divisive history that continues to this day. We often consider the universe to encompass everything that exists, but some scientists have come to believe that the vast, expanding universe we inhabit may be just one of many. The totality of those parallel universes, still for some the stuff of science fiction, has come to be known as the multiverse. The concept of the multiverse, exotic as it may be, isn’t actually new. In The Number of the Heavens, veteran science journalist Tom Siegfried traces the history of this controversial idea from antiquity to the present. Ancient Greek philosophers first raised the possibility of multiple universes, but Aristotle insisted on one and only one cosmos. Then in 1277 the bishop of Paris declared it heresy to teach that God could not create as many universes as he pleased, unleashing fervent philosophical debate about whether there might exist a “plurality of worlds.” As the Middle Ages gave way to the Renaissance, the philosophical debates became more scientific. René Descartes declared “the number of the heavens” to be indefinitely large, and as notions of the known universe expanded from our solar system to our galaxy, the debate about its multiplicity was repeatedly recast. In the 1980s, new theories about the big bang reignited interest in the multiverse. Today the controversy continues, as cosmologists and physicists explore the possibility of many big bangs, extra dimensions of space, and a set of branching, parallel universes. This engrossing story offers deep lessons about the nature of science and the quest to understand the universe.
The Number of the Heavens
Author: Tom Siegfried
Publisher: Harvard University Press
ISBN: 0674243382
Category : Science
Languages : en
Pages : 353
Book Description
The award-winning former editor of Science News shows that one of the most fascinating and controversial ideas in contemporary cosmology—the existence of multiple parallel universes—has a long and divisive history that continues to this day. We often consider the universe to encompass everything that exists, but some scientists have come to believe that the vast, expanding universe we inhabit may be just one of many. The totality of those parallel universes, still for some the stuff of science fiction, has come to be known as the multiverse. The concept of the multiverse, exotic as it may be, isn’t actually new. In The Number of the Heavens, veteran science journalist Tom Siegfried traces the history of this controversial idea from antiquity to the present. Ancient Greek philosophers first raised the possibility of multiple universes, but Aristotle insisted on one and only one cosmos. Then in 1277 the bishop of Paris declared it heresy to teach that God could not create as many universes as he pleased, unleashing fervent philosophical debate about whether there might exist a “plurality of worlds.” As the Middle Ages gave way to the Renaissance, the philosophical debates became more scientific. René Descartes declared “the number of the heavens” to be indefinitely large, and as notions of the known universe expanded from our solar system to our galaxy, the debate about its multiplicity was repeatedly recast. In the 1980s, new theories about the big bang reignited interest in the multiverse. Today the controversy continues, as cosmologists and physicists explore the possibility of many big bangs, extra dimensions of space, and a set of branching, parallel universes. This engrossing story offers deep lessons about the nature of science and the quest to understand the universe.
Publisher: Harvard University Press
ISBN: 0674243382
Category : Science
Languages : en
Pages : 353
Book Description
The award-winning former editor of Science News shows that one of the most fascinating and controversial ideas in contemporary cosmology—the existence of multiple parallel universes—has a long and divisive history that continues to this day. We often consider the universe to encompass everything that exists, but some scientists have come to believe that the vast, expanding universe we inhabit may be just one of many. The totality of those parallel universes, still for some the stuff of science fiction, has come to be known as the multiverse. The concept of the multiverse, exotic as it may be, isn’t actually new. In The Number of the Heavens, veteran science journalist Tom Siegfried traces the history of this controversial idea from antiquity to the present. Ancient Greek philosophers first raised the possibility of multiple universes, but Aristotle insisted on one and only one cosmos. Then in 1277 the bishop of Paris declared it heresy to teach that God could not create as many universes as he pleased, unleashing fervent philosophical debate about whether there might exist a “plurality of worlds.” As the Middle Ages gave way to the Renaissance, the philosophical debates became more scientific. René Descartes declared “the number of the heavens” to be indefinitely large, and as notions of the known universe expanded from our solar system to our galaxy, the debate about its multiplicity was repeatedly recast. In the 1980s, new theories about the big bang reignited interest in the multiverse. Today the controversy continues, as cosmologists and physicists explore the possibility of many big bangs, extra dimensions of space, and a set of branching, parallel universes. This engrossing story offers deep lessons about the nature of science and the quest to understand the universe.
Mapping the Heavens
Author: Priyamvada Natarajan
Publisher: Yale University Press
ISBN: 0300221126
Category : Science
Languages : en
Pages : 337
Book Description
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 invisible matter in the universe. She not only explains for a wide audience the science behind these essential ideas but also provides an understanding of how radical scientific theories gain acceptance. The formation and growth of black holes, dark matter halos, the accelerating expansion of the universe, the echo of the big bang, the discovery of exoplanets, and the possibility of other universes—these are some of the puzzling cosmological topics of the early twenty-first century. Natarajan discusses why the acceptance of new ideas about the universe and our place in it has never been linear and always contested even within the scientific community. And she affirms that, shifting and incomplete as science always must be, it offers the best path we have toward making sense of our wondrous, mysterious universe. “Part history, part science, all illuminating. If you want to understand the greatest ideas that shaped our current cosmic cartography, read this book.”—Adam G. Riess, Nobel Laureate in Physics, 2011 “A highly readable, insider’s view of recent discoveries in astronomy with unusual attention to the instruments used and the human drama of the scientists.”—Alan Lightman, author of The Accidental Universe and Einstein's Dream
Publisher: Yale University Press
ISBN: 0300221126
Category : Science
Languages : en
Pages : 337
Book Description
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 invisible matter in the universe. She not only explains for a wide audience the science behind these essential ideas but also provides an understanding of how radical scientific theories gain acceptance. The formation and growth of black holes, dark matter halos, the accelerating expansion of the universe, the echo of the big bang, the discovery of exoplanets, and the possibility of other universes—these are some of the puzzling cosmological topics of the early twenty-first century. Natarajan discusses why the acceptance of new ideas about the universe and our place in it has never been linear and always contested even within the scientific community. And she affirms that, shifting and incomplete as science always must be, it offers the best path we have toward making sense of our wondrous, mysterious universe. “Part history, part science, all illuminating. If you want to understand the greatest ideas that shaped our current cosmic cartography, read this book.”—Adam G. Riess, Nobel Laureate in Physics, 2011 “A highly readable, insider’s view of recent discoveries in astronomy with unusual attention to the instruments used and the human drama of the scientists.”—Alan Lightman, author of The Accidental Universe and Einstein's Dream
The Five People You Meet In Heaven
Author: Mitch Albom
Publisher: Hachette UK
ISBN: 0748112634
Category : Fiction
Languages : en
Pages : 240
Book Description
THE INSPIRATIONAL CLASSIC FROM THE MASTER STORYTELLER WHOSE BOOKS HAVE TOUCHED THE HEARTS OF OVER 40 MILLION READERS 'Mitch Albom sees the magical in the ordinary' Cecilia Ahern _________ To his mind, Eddie has lived an uninspiring life. Now an old man, his job is to fix rides at a seaside amusement park. On his eighty-third birthday, Eddie's time on earth comes to an end. When a cart falls from the fairground, he rushes to save a little girl's life and tragically dies in the attempt. When Eddie awakens, he learns that the afterlife is not a destination, but a place where your existence is explained to you by five people - some of whom you knew, others who were ostensibly strangers. One by one, from childhood to soldier to old age, five individuals revisit their connections to Eddie on earth, illuminating the mysteries of his 'meaningless' life and revealing the haunting secret behind the eternal question: 'Why was I here?' __________ WHAT READERS SAY ABOUT THE FIVE PEOPLE YOU MEET IN HEAVEN 'Breathtakingly beautiful. A story that will stay with you forever' 'A beautiful and flawlessly choreographed book . . . No other book may ever compare' 'One of my favourite books . . . Wonderful, inspirational, and heart-warming! To me, it is a MUST READ! 'The book is beyond words . . . Well written, engaging, poignant' 'This really is a wonderful book. You should read it'
Publisher: Hachette UK
ISBN: 0748112634
Category : Fiction
Languages : en
Pages : 240
Book Description
THE INSPIRATIONAL CLASSIC FROM THE MASTER STORYTELLER WHOSE BOOKS HAVE TOUCHED THE HEARTS OF OVER 40 MILLION READERS 'Mitch Albom sees the magical in the ordinary' Cecilia Ahern _________ To his mind, Eddie has lived an uninspiring life. Now an old man, his job is to fix rides at a seaside amusement park. On his eighty-third birthday, Eddie's time on earth comes to an end. When a cart falls from the fairground, he rushes to save a little girl's life and tragically dies in the attempt. When Eddie awakens, he learns that the afterlife is not a destination, but a place where your existence is explained to you by five people - some of whom you knew, others who were ostensibly strangers. One by one, from childhood to soldier to old age, five individuals revisit their connections to Eddie on earth, illuminating the mysteries of his 'meaningless' life and revealing the haunting secret behind the eternal question: 'Why was I here?' __________ WHAT READERS SAY ABOUT THE FIVE PEOPLE YOU MEET IN HEAVEN 'Breathtakingly beautiful. A story that will stay with you forever' 'A beautiful and flawlessly choreographed book . . . No other book may ever compare' 'One of my favourite books . . . Wonderful, inspirational, and heart-warming! To me, it is a MUST READ! 'The book is beyond words . . . Well written, engaging, poignant' 'This really is a wonderful book. You should read it'
Mechanism of the Heavens
Author: Mary Somerville
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 710
Book Description
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 710
Book Description
The Heavens on Earth
Author: David Aubin
Publisher: Duke University Press
ISBN: 082239250X
Category : Science
Languages : en
Pages : 400
Book Description
The Heavens on Earth explores the place of the observatory in nineteenth-century science and culture. Astronomy was a core pursuit for observatories, but usually not the only one. It belonged to a larger group of “observatory sciences” that also included geodesy, meteorology, geomagnetism, and even parts of physics and statistics. These pursuits coexisted in the nineteenth-century observatory; this collection surveys them as a coherent whole. Broadening the focus beyond the solitary astronomer at his telescope, it illuminates the observatory’s importance to technological, military, political, and colonial undertakings, as well as in advancing and popularizing the mathematical, physical, and cosmological sciences. The contributors examine “observatory techniques” developed and used not only in connection with observatories but also by instrument makers in their workshops, navy officers on ships, civil engineers in the field, and many others. These techniques included the calibration and coordination of precision instruments for making observations and taking measurements; methods of data acquisition and tabulation; and the production of maps, drawings, and photographs, as well as numerical, textual, and visual representations of the heavens and the earth. They also encompassed the social management of personnel within observatories, the coordination of international scientific collaborations, and interactions with dignitaries and the public. The state observatory occupied a particularly privileged place in the life of the city. With their imposing architecture and ancient traditions, state observatories served representative purposes for their patrons, whether as symbols of a monarch’s enlightened power, a nation’s industrial and scientific excellence, or republican progressive values. Focusing on observatory techniques in settings from Berlin, London, Paris, and Rome to Australia, Russia, Thailand, and the United States, The Heavens on Earth is a major contribution to the history of science. Contributors: David Aubin, Charlotte Bigg, Guy Boistel, Theresa Levitt, Massimo Mazzotti, Ole Molvig, Simon Schaffer, Martina Schiavon , H. Otto Sibum, Richard Staley, John Tresch, Simon Werrett, Sven Widmalm
Publisher: Duke University Press
ISBN: 082239250X
Category : Science
Languages : en
Pages : 400
Book Description
The Heavens on Earth explores the place of the observatory in nineteenth-century science and culture. Astronomy was a core pursuit for observatories, but usually not the only one. It belonged to a larger group of “observatory sciences” that also included geodesy, meteorology, geomagnetism, and even parts of physics and statistics. These pursuits coexisted in the nineteenth-century observatory; this collection surveys them as a coherent whole. Broadening the focus beyond the solitary astronomer at his telescope, it illuminates the observatory’s importance to technological, military, political, and colonial undertakings, as well as in advancing and popularizing the mathematical, physical, and cosmological sciences. The contributors examine “observatory techniques” developed and used not only in connection with observatories but also by instrument makers in their workshops, navy officers on ships, civil engineers in the field, and many others. These techniques included the calibration and coordination of precision instruments for making observations and taking measurements; methods of data acquisition and tabulation; and the production of maps, drawings, and photographs, as well as numerical, textual, and visual representations of the heavens and the earth. They also encompassed the social management of personnel within observatories, the coordination of international scientific collaborations, and interactions with dignitaries and the public. The state observatory occupied a particularly privileged place in the life of the city. With their imposing architecture and ancient traditions, state observatories served representative purposes for their patrons, whether as symbols of a monarch’s enlightened power, a nation’s industrial and scientific excellence, or republican progressive values. Focusing on observatory techniques in settings from Berlin, London, Paris, and Rome to Australia, Russia, Thailand, and the United States, The Heavens on Earth is a major contribution to the history of science. Contributors: David Aubin, Charlotte Bigg, Guy Boistel, Theresa Levitt, Massimo Mazzotti, Ole Molvig, Simon Schaffer, Martina Schiavon , H. Otto Sibum, Richard Staley, John Tresch, Simon Werrett, Sven Widmalm
The Fires of Heaven
Author: Robert Jordan
Publisher: Tor Books
ISBN: 142996037X
Category : Fiction
Languages : en
Pages : 1008
Book Description
The Wheel of Time is now an original series on Prime Video, starring Rosamund Pike as Moiraine! In The Fires of Heaven, the fifth novel in Robert Jordan’s #1 New York Times bestselling epic fantasy series, The Wheel of Time®, four of the most powerful Forsaken band together against the Champion of Light, Rand al’Thor. Prophesized to defeat the Dark One, Rand al'Thor, the Dragon Reborn, has upset the balance of power across the land. Shaido Aiel are on the march, ravaging everything in their path. The White Tower's Amyrlin has been deposed, turning the Aes Sedai against one another. The forbidden city of Rhuidean is overrun by Shadowspawn. Despite the chaos swirling around him, Rand continues to learn how to harness his abilities, determined to wield the One Power--and ignoring the counsel of Moiraine Damodred at great cost. Since its debut in 1990, The Wheel of Time® by Robert Jordan has captivated millions of readers around the globe with its scope, originality, and compelling characters. The last six books in series were all instant #1 New York Times bestsellers, and The Eye of the World was named one of America's best-loved novels by PBS's The Great American Read. The Wheel of Time® New Spring: The Novel #1 The Eye of the World #2 The Great Hunt #3 The Dragon Reborn #4 The Shadow Rising #5 The Fires of Heaven #6 Lord of Chaos #7 A Crown of Swords #8 The Path of Daggers #9 Winter's Heart #10 Crossroads of Twilight #11 Knife of Dreams By Robert Jordan and Brandon Sanderson #12 The Gathering Storm #13 Towers of Midnight #14 A Memory of Light By Robert Jordan and Teresa Patterson The World of Robert Jordan's The Wheel of Time By Robert Jordan, Harriet McDougal, Alan Romanczuk, and Maria Simons The Wheel of Time Companion By Robert Jordan and Amy Romanczuk Patterns of the Wheel: Coloring Art Based on Robert Jordan's The Wheel of Time At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.
Publisher: Tor Books
ISBN: 142996037X
Category : Fiction
Languages : en
Pages : 1008
Book Description
The Wheel of Time is now an original series on Prime Video, starring Rosamund Pike as Moiraine! In The Fires of Heaven, the fifth novel in Robert Jordan’s #1 New York Times bestselling epic fantasy series, The Wheel of Time®, four of the most powerful Forsaken band together against the Champion of Light, Rand al’Thor. Prophesized to defeat the Dark One, Rand al'Thor, the Dragon Reborn, has upset the balance of power across the land. Shaido Aiel are on the march, ravaging everything in their path. The White Tower's Amyrlin has been deposed, turning the Aes Sedai against one another. The forbidden city of Rhuidean is overrun by Shadowspawn. Despite the chaos swirling around him, Rand continues to learn how to harness his abilities, determined to wield the One Power--and ignoring the counsel of Moiraine Damodred at great cost. Since its debut in 1990, The Wheel of Time® by Robert Jordan has captivated millions of readers around the globe with its scope, originality, and compelling characters. The last six books in series were all instant #1 New York Times bestsellers, and The Eye of the World was named one of America's best-loved novels by PBS's The Great American Read. The Wheel of Time® New Spring: The Novel #1 The Eye of the World #2 The Great Hunt #3 The Dragon Reborn #4 The Shadow Rising #5 The Fires of Heaven #6 Lord of Chaos #7 A Crown of Swords #8 The Path of Daggers #9 Winter's Heart #10 Crossroads of Twilight #11 Knife of Dreams By Robert Jordan and Brandon Sanderson #12 The Gathering Storm #13 Towers of Midnight #14 A Memory of Light By Robert Jordan and Teresa Patterson The World of Robert Jordan's The Wheel of Time By Robert Jordan, Harriet McDougal, Alan Romanczuk, and Maria Simons The Wheel of Time Companion By Robert Jordan and Amy Romanczuk Patterns of the Wheel: Coloring Art Based on Robert Jordan's The Wheel of Time At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.
A Walk Through the Heavens
Author: Milton D. Heifetz
Publisher: Cambridge University Press
ISBN: 9780521544153
Category : Nature
Languages : en
Pages : 100
Book Description
Easy-to-use guide to the constellations of the night sky and their myths and legends.
Publisher: Cambridge University Press
ISBN: 9780521544153
Category : Nature
Languages : en
Pages : 100
Book Description
Easy-to-use guide to the constellations of the night sky and their myths and legends.
The Song of All
Author: Tina Le Count Myers
Publisher: Start Publishing LLC
ISBN: 1597806234
Category : Fiction
Languages : en
Pages : 461
Book Description
On the forbidding fringes of the tundra, where years are marked by seasons of snow, humans war with immortals in the name of their shared gods. Irjan, a human warrior, is ruthless and lethal, a legend among the Brethren of Hunters. But even legends grow tired and disillusioned. Scarred and weary of bloodshed, Irjan turns his back on his oath and his calling to hide away and live a peaceful life as a farmer, husband, and father. But his past is not so easily left behind. When an ambitious village priest conspires with the vengeful comrades Irjan has forsaken, the fragile peace in the Northlands of Davvieana is at stake. His bloody past revealed, Irjan’s present unravels as he faces an ultimatum: return to hunt the immortals or lose his child. But with his son’s life hanging in the balance, as Irjan follows the tracks through the dark and desolate snow-covered forests, it is not death he searches for, but life.
Publisher: Start Publishing LLC
ISBN: 1597806234
Category : Fiction
Languages : en
Pages : 461
Book Description
On the forbidding fringes of the tundra, where years are marked by seasons of snow, humans war with immortals in the name of their shared gods. Irjan, a human warrior, is ruthless and lethal, a legend among the Brethren of Hunters. But even legends grow tired and disillusioned. Scarred and weary of bloodshed, Irjan turns his back on his oath and his calling to hide away and live a peaceful life as a farmer, husband, and father. But his past is not so easily left behind. When an ambitious village priest conspires with the vengeful comrades Irjan has forsaken, the fragile peace in the Northlands of Davvieana is at stake. His bloody past revealed, Irjan’s present unravels as he faces an ultimatum: return to hunt the immortals or lose his child. But with his son’s life hanging in the balance, as Irjan follows the tracks through the dark and desolate snow-covered forests, it is not death he searches for, but life.
Heaven's Reach
Author: David Brin
Publisher: Spectra
ISBN: 0307573508
Category : Fiction
Languages : en
Pages : 576
Book Description
Winner of the Nebula and Hugo Awards, David Brin brings his bestselling Uplift series to a magnificent conclusion with his most imaginative and powerful novel to date--the shattering epic of a universe poised on the brink of revelation...or annihilation. The brutal enemy that has relentlessly pursued them for centuries has arrived. Now the fugitive settlers of Jijo--both human and alien--brace for a final confrontation. The Jijoans' only hope is the Earthship Streaker, crewed by uplifted dolphins and commanded by an untested human. Yet more than just the fate of Jijo hangs in the balance. For Streaker carries a cargo of ancient artifacts that may unlock the secret of those who first brought intelligent life to the Galaxies. Many believe a dire prophecy has come to pass: an age of terrifying changes that could end Galactic civilization. As dozens of white dwarf stars stand ready to explode, the survival of sentient life in the universe rests on the most improbable dream of all--that age-old antagonists of different races can at last recognize the unity of all consciousness.
Publisher: Spectra
ISBN: 0307573508
Category : Fiction
Languages : en
Pages : 576
Book Description
Winner of the Nebula and Hugo Awards, David Brin brings his bestselling Uplift series to a magnificent conclusion with his most imaginative and powerful novel to date--the shattering epic of a universe poised on the brink of revelation...or annihilation. The brutal enemy that has relentlessly pursued them for centuries has arrived. Now the fugitive settlers of Jijo--both human and alien--brace for a final confrontation. The Jijoans' only hope is the Earthship Streaker, crewed by uplifted dolphins and commanded by an untested human. Yet more than just the fate of Jijo hangs in the balance. For Streaker carries a cargo of ancient artifacts that may unlock the secret of those who first brought intelligent life to the Galaxies. Many believe a dire prophecy has come to pass: an age of terrifying changes that could end Galactic civilization. As dozens of white dwarf stars stand ready to explode, the survival of sentient life in the universe rests on the most improbable dream of all--that age-old antagonists of different races can at last recognize the unity of all consciousness.