Since its foundation in 1904, the Mount Wilson Observatory has been at the centre of the development of astrophysics. Perched atop a mountain wilderness, two mammoth solar tower telescopes and the 60- and 100-inch behemoth night-time reflectors were all the largest in the world. Research has centred around two main themes - the evolution of stars and the development of the universe. This first volume in a series of five histories of the Carnegie Institution describes the people and events, the challenges and successes that the Observatory has witnessed. It includes biographical sketches of forty of the most famous Mount Wilson pioneer astronomers working during the first half of the twentieth century. Contemporary photographs illustrate the development and use of some of the innovative instruments that filled the observatory during this time. This story brings together the elements that formed modern theories of stellar evolution and cosmology.

For over a century, the Geophysical Laboratory of the Carnegie Institution of Washington has witnessed exciting discoveries and ingenious research, made possible by the scientific freedom granted to members of the department. For the most part, this research has involved laboratory experimentation on the physics and chemistry of rock-forming minerals at high temperature and pressure. This third volume in a series of five histories of the Carnegie Institution documents the contribution made by the members of the Geophysical Laboratory to our understanding of the Earth, from mineral formation deep below the surface, to the search for the origins of life, and out into space to study the chemical evolution of the interstellar medium. Field work has taken researchers from active volcanoes to ships collecting ocean sediments, and geological mapping expeditions around the world. Contemporary photographs throughout illustrate the evolution of the department and its research.

In 1902, Andrew Carnegie founded the Carnegie Institution of Washington, to support innovative science research. Since its creation two years later, the Department of Terrestrial Magnetism has undertaken a broad range of research from terrestrial magnetism, ionospheric physics and geochemistry to biophysics, radio astronomy and planetary science. This second volume in a series of five histories of the Carnegie Institution describes the people and events, the challenges and successes that the Department has witnessed over the last century. Contemporary photographs illustrate some of the remarkable expeditions and instruments developed in pursuit of scientific understanding, from sailing ships to nuclear particle accelerators and radio telescopes to mass spectrometers. These photographs show an evolution of scientific progress through the century, often done under trying, even exciting circumstances.

The story of Hubble and Humason is one for the ages—and in particular, the Cosmic Age. In this compelling book, science writer Ron Voller digs deep into how and why the two scientists continued to investigate their theory of universal expansion in the face of persistent doubt, contrary theories, and calamitous world events. The evolution of this dynamic duo’s tenuous friendship and professional partnership is in many ways as intriguing as their groundbreaking work on the evolution of the universe. The book therefore traces their lives from their childhoods into their burgeoning careers, revealing how a World War and their own personal differences stood in the way of initial cooperation. It then shows how despite all this, the two opposites eventually came together in the pursuit of something far greater than themselves. This grand story is inextricably interwoven with that of Albert Einstein, Willem de Sitter, and other great physicists of the era, all of whom took part in the staggering quest to make sense of the Big Bang and what followed. “Edwin Hubble has often been considered as an island of sorts—a lone wolf of astronomy. But Voller’s book shows otherwise, as he examines Milt Humason’s essential contributions to our understanding of the expanding universe.” - Daniel Lewis, Dibner Senior Curator, History of Science & Technology, The Huntington Library

The fifth in a series of five histories of the Carnegie Institution of Washington, offering an exciting exploration of a century of scientific discovery.

From humble beginnings as a small desert laboratory in Tucson, Arizona, at the beginning of the twentieth century, the Carnegie Institution's Department of Plant Biology has evolved into a thriving international center of plant molecular biology that sits today on the campus of Stanford University. This fourth in a series of five histories of the Carnegie Institution touches on the tangled beginnings of ecology, the baroque complexities of photosynthesis, the great mid-century evolutionary synthesis and the adventurous start of the plant molecular revolution.

This book details the lives of two married geniuses, Aden and Marjorie Meinel, who helped to pioneer modern optics and solar energy in the U.S. Aden B. Meinel and Marjorie P. Meinel stood at the confluence of several overarching technological developments during their lifetimes, including postwar aerial surveillance by spy planes and satellites, solar energy, the evolution of telescope design, interdisciplinary optics, and photonics. Yet, their incredible stories and their long list of scientific contributions have never been adequately recognized in one place. In this book, James Breckinridge and Alec M. Pridgeon correct this oversight by sharing the story of this powerful duo. The book follows their lives and covers large scientific developments between World War II to the Cold War. James B. Breckinridge, a previous advisee and later colleague to the Meinels, and historian and scientist Alec M. Pridgeon collected more than 200 hours of oral interviews with those who worked closely with the Meinels and some who built their careers around the findings made possible by their work. The book shares and analyzes the work done by the Meinels, and it also includes incredible insights from an unpublished Meinel autobiography.