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 of 2017 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.

"A short, excellent account of [Leavitt’s] extraordinary life and achievements." —Simon Singh, New York Times Book Review George Johnson brings to life Henrietta Swan Leavitt, who found the key to the vastness of the universe—in the form of a “yardstick” suitable for measuring it. Unknown in our day, Leavitt was no more recognized in her own: despite her enormous achievement, she was employed by the Harvard Observatory as a mere number-cruncher, at a wage not dissimilar from that of workers in the nearby textile mills. Miss Leavitt’s Stars uncovers her neglected history.

THE STORY: When Henrietta Leavitt begins work at the Harvard Observatory in the early 1900s, she isn’t allowed to touch a telescope or express an original idea. Instead, she joins a group of women “computers,” charting the stars for a renowned astronomer who calculates projects in “girl hours” and has no time for the women’s probing theories. As Henrietta, in her free time, attempts to measure the light and distance of stars, she must also take measure of her life on Earth, trying to balance her dedication to science with family obligations and the possibility of love. The true story of 19th-century astronomer Henrietta Leavitt explores a woman’s place in society during a time of immense scientific discoveries, when women’s ideas were dismissed until men claimed credit for them. Social progress, like scientific progress, can be hard to see when one is trapped among earthly complications; Henrietta Leavitt and her female peers believe in both, and their dedication changed the way we understand both the heavens and Earth.

For the last four hundred years, women have played a part far in excess of their numerical representation in the history of astronomical research and discovery. It was a woman who gave us our first tool for measuring the distances between stars, and another who told us for the first time what those stars were made of. It was women who first noticed the rhythmic noise of a pulsar, the temperature discrepancy that announced the existence of white dwarf stars, and the irregularities in galactic motion that informed us that the universe we see might be only a small part of the universe that exists. And yet, in spite of the magnitude of their achievements, for centuries women were treated as essentially second class citizens within the astronomical community, contained in back rooms, forbidden from communicating with their male colleagues, provided with repetitive and menial tasks, and paid starvation wages. This book tells the tale of how, in spite of all those impediments, women managed, by sheer determination and genius, to unlock the secrets of the night sky. It is the story of some of science's most hallowed names - Maria Mitchell, Caroline Herschel, Vera Rubin, Nancy Grace Roman, and Jocelyn Bell-Burnell - and also the story of scientists whose accomplishments were great, but whose names have faded through lack of use - Queen Seondeok of Korea, who built an observatory in the 7th century that still stands today, Wang Zhenyi, who brought heliocentrism to China, Margaret Huggins, who perfected the techniques that allowed us to photograph stellar spectra and thereby completely changed the direction of modern astronomy, and Hisako Koyama, whose multi-decade study of the sun's surface is as impressive a feat of steadfast scientific dedication as it is a rigorous and valuable treasure trove of solar data. A History of Women in Astronomy and Space Exploration is not only a book, however, of those who study space, but of those who have ventured into it, from the fabled Mercury 13, whose attempt to join the American space program was ultimately foiled by betrayal from within, to mythical figures like Kathryn Sullivan and Sally Ride, who were not only pioneering space explorers, but scientific researchers and engineers in their own rights, aided in their work by scientists like Mamta Patel Nagaraja, who studied the effects of space upon the human body, and computer programmers like Marianne Dyson, whose simulations prepared astronauts for every possible catastrophe that can occur in space. Told through over 130 stories spanning four thousand years of humanity's attempt to understand its place in the cosmos, A History of Women in Astronomy and Space Exploration brings us at last the full tale of women's evolution from instrument makers and calculators to the theorists, administrators, and explorers who have, while receiving astonishingly little in return, given us, quite literally, the universe.

Founded in 1911, the AAVSO boasts over 1200 members and observers and is the world's largest non-profit organization dedicated to variable star observation. This timely book marks the AAVSO's centennial year, presenting an authoritative and accurate history of this important association. Writing in an engaging and accessible style, the authors move chronologically through five eras of the AAVSO, discussing the evolution of its structure and purpose. Throughout the text, the main focus is on the thousands of individuals whose contributions have made the AAVSO's progress possible. Describing a century of interaction between amateur and professional astronomers, the authors celebrate the collaborative relationships that have existed over the years. As the definitive history of the first hundred years of the AAVSO, this text has broad appeal and will be of interest to amateur and professional astronomers, as well as historians and sociologists of science in general.

This Encyclopedia traces the history of the oldest science from the ancient world to the space age in over 300 entries by leading experts.