The tenth anniversary edition of the dramatic human story of an epic scientific quest: the search for the solution of how to calculate longitude and the unlikely triumph of an English genius. With a new Foreword by the celebrated astronaut Neil Armstrong. 'Sobel has done the impossible and made horology sexy - no mean feat' New Scientist Anyone alive in the 18th century would have known that 'the longitude problem' was the thorniest scientific dilemma of the day - and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives, and the increasing fortunes of nations, hung on a resolution. The quest for a solution had occupied scientists and their patrons for the better part of two centuries when, in 1714, Parliament upped the ante by offering a king's ransom (GBP20,000) to anyone whose method or device proved successful. Countless quacks weighed in with preposterous suggestions. The scientific establishment throughout Europe - from Galileo to Sir Isaac Newton - had mapped the heavens in both hemispheres in its certain pursuit of a celestial answer. In stark contrast, one man, John Harrison, dared to imagine a mechanical solution. Full of heroism and chicanery, brilliance and the absurd, LONGITUDE is also a fascinating brief history of astronomy, navigation and clockmaking.

Anyone alive in the eighteenth century would have known that "the longitude problem" was the thorniest scientific dilemma of the day--and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives and the increasing fortunes of nations hung on a resolution. One man, John Harrison, in complete opposition to the scientific community, dared to imagine a mechanical solution--a clock that would keep precise time at sea, something no clock had ever been able to do on land. "Longitude" is the dramatic human story of an epic scientific quest and of Harrison's forty-year obsession with building his perfect timekeeper, known today as the chronometer. Full of heroism and chicanery, it is also a fascinating brief history of astronomy, navigation, and clockmaking, and opens a new window on our world.

Galileo Galilei (1564 – 1642) was the foremost scientist of his day, the man Albert Einstein was to call 'the father of modern physics – indeed of modern science altogether'. Though he never left the Italy of his birth, his inventions and discoveries were heralded around the world. His telescopes allowed him to reveal a new reality in the heavens and to publicly propound the astounding argument that the earth actually moves around the sun. For this belief he was brought before the Holy Office of the Inquisition, tried for heresy and threatened with torture. In contrast, his daughter, Virginia, became a cloistered nun. Born in 1600, she was thirteen when Galileo placed her in a convent near him in Florence, where she took the most appropriate name of Suor Maria Celeste. Galileo later said of her that she had an exquisite mind, and her intelligence and loving support proved to be her father's greatest source of strength through his most difficult years.

Inspired by her long fascination with Galileo, and by the remarkable surviving letters of his daughter, which she has translated into English for the first time, Dava Sobel has written a book that brings Galileo to life as never before. A man who was compelled to explain the truths he discovered, he was a faithful Catholic devoted to family and, especially, to his daughter. Their voices, and those of others who touched their lives, echo down the centuries through letters and writings, which Sobel masterfully weaves into her narrative, building toward the crescendo of history's most dramatic collision between science and religion. In the process, Dava Sobel illuminates an entire era, when the flamboyant Medici Grand Dukes became Galileo's patrons, when the bubonic plague wreaked its terrible devastation and prayer was the most effective medicine, when the Thirty Years War tipped fortunes across Europe, and when one man fought, through his trial and betrayal by his former friend, Pope Urban VIII, to reconcile the Heaven he revered as a good Catholic with the heavens he revealed through his telescope. Galileo's Daughter is an unforgettable story.

From #1 New York Times bestselling author Dava Sobel, the "inspiring" (People), little-known true story of women's landmark contributions to astronomy A New York Times Book Review Notable Book Named one of the best books of the year by NPR, The Economist, Smithsonian, Nature, and NPR's Science Friday Nominated for the PEN/E.O. Wilson Literary Science Writing Award "A joy to read." -The Wall Street Journal In the mid-nineteenth century, the Harvard College Observatory began employing women as calculators, or "human computers," to interpret the observations their male counterparts made via telescope each night. At the outset this group included the wives, sisters, and daughters of the resident astronomers, but soon the female corps included graduates of the new women's colleges-Vassar, Wellesley, and Smith. As photography transformed the practice of astronomy, the ladies turned from computation to studying the stars captured nightly on glass photographic plates. The "glass universe" of half a million plates that Harvard amassed over the ensuing decades-through the generous support of Mrs. Anna Palmer Draper, the widow of a pioneer in stellar photography-enabled the women to make extraordinary discoveries that attracted worldwide acclaim. They helped discern what stars were made of, divided the stars into meaningful categories for further research, and found a way to measure distances across space by starlight. Their ranks included Williamina Fleming, a Scottish woman originally hired as a maid who went on to identify ten novae and more than three hundred variable stars; Annie Jump Cannon, who designed a stellar classification system that was adopted by astronomers the world over and is still in use; and Dr. Cecilia Helena Payne, who in 1956 became the first ever woman professor of astronomy at Harvard-and Harvard's first female department chair. Elegantly written and enriched by excerpts from letters, diaries, and memoirs, The Glass Universe is the hidden history of the women whose contributions to the burgeoning field of astronomy forever changed our understanding of the stars and our place in the universe.

AN OBSERVER BOOK OF THE YEAR 'A peerless intellectual biography. The Glass Universe shines and twinkles as brightly as the stars themselves' The Economist #1 New York Times bestselling author Dava Sobel returns with a captivating, little-known true story of women in science Before they even had the right to vote, a group of remarkable women were employed by Harvard College Observatory as 'Human Computers' to interpret the observations made via telescope by their male counterparts each night. The author of Longitude, Galileo's Daughter and The Planets shines light on the hidden history of these extraordinary women who changed the burgeoning field of astronomy and our understanding of the stars and our place in the universe.

Inspired by a long fascination with Galileo, and by the remarkable surviving letters of his daughter Maria Celeste, a cloistered nun, Dava Sobel has crafted a biography that dramatically recolors the personality and accomplishments of a mythic figure whose early-seventeenth-century clash with Catholic doctrine continues to define the schism between science and religion-the man Albert Einstein called "the father of modern physics-indeed of modern science altogether." It is also a stunning portrait of Galileo's daughter, a person hitherto lost to history, described by her father as "a woman of exquisite mind, singular goodness, and most tenderly attached to me."

Moving between Galileo's grand public life and Maria Celeste's sequestered world, Sobel illuminates the Florence of the Medicis and the papal court in Rome during the pivotal era when humanity's perception of its place in the cosmos was about to be overturned. During that same time, while the bubonic plague wreaked its terrible devastation and the Thirty Years' War tipped fortunes across Europe, Galileo sought to reconcile the Heaven he revered as a good Catholic with the heavens he revealed through his telescope. Filled with human drama and scientific adventure, "Galileo's Daughter" is an unforgettable story.

Praise for" Galileo's Daughter"

" Sobel] shows herself a virtuoso at encapsulating the history and the politics of science. Her descriptions of Galileo's ideas...are pithy, vivid, and intelligible."-"Wall Street Journal"

Placed in a convent at the age of thirteen, Virginia Galilei, Galileo’s eldest daughter, wrote to her father continually. Now Dava Sobel has translated into English all 124 surviving letters that Virginia (renamed Suor Maria Celeste at the convent) wrote to Galileo. The letters span a dramatic decade that included the Thirty Years’ War, the bubonic plague, and the development of Galileo’s own universe-changing discoveries. Suor Maria Celeste’s letters touch on these events, but mostly they focus on details of everyday life that connect her and her father: descriptions of confections she sent to him; news of his estate, which she managed while he was on trial; a request for Galileo to fix the convent clock. Her prose reveals an exceptional woman and presents a memorable portrait of deep affection between a father and daughter.

With her bestsellers "Longitude" and "Galileo's Daughter," Dava Sobel introduced readers to her rare gift for weaving complex scientific concepts into a compelling narrative. Now Sobel brings her full talents to bear on what is perhaps her most ambitious topic to date-the planets of our solar system. Sobel explores the origins and oddities of the planets through the lens of popular culture, from astrology, mythology, and science fiction to art, music, poetry, biography, and history. Written in her characteristically graceful prose, "The Planets" is a stunningly original celebration of our solar system and offers a distinctive view of our place in the universe.
* A "New York Times" extended bestseller
* A Featured Alternate of the Book-of-the-Month Club, History Book Club, Scientific American Book Club, and Natural Science Book Club
* Includes 11 full-color illustrations by artist Lynette R. Cook BACKCOVER: " "The Planets"] lets us fall in love with the heavens all over again."
-"The New York Times Book Review"
"Playful . . . lyrical . . . a guided tour so imaginative that we forget we're being educated as we're being entertained."
-"Newsweek"
" Sobel] has outdone her extraordinary talent for keeping readers enthralled. . . . "Longitude" and "Galileo's Daughter" were exciting enough, but "The Planets" has a charm of its own . . . . A splendid and enticing book."
-"San Francisco Chronicle"
"A sublime journey. Sobel's] writing . . . is as bright as the sun and its thinking as star-studded as the cosmos."
-"The Atlanta Journal-Constitution"
"An incantatory serenade to the Solar System. Grade A-"
-"Entertainment Weekly"
"Like Sobel's "Longitude" and "Galileo's Daughter"] . . . "The Planets"] combines masterful storytelling with clear, engaging explanations of the essential scientific facts."
-"Physics World"