Laura de León is a radar astronomer who studies Potentially Hazardous Objects (PHOs) such as threatening asteroids and comets at NASA’s Jet Propulsion Lab in Pasadena, California. In Los Angeles in 2020, several crises are coalescing. The first strain of SARS-CoV-2 triggers the lockdowns, the city roils with protests of Derek Chauvin’s murder of George Floyd and the police killing of Breonna Taylor, while the Bobcat Fire sweeps across the San Fernando Valley. In the midst of these emergencies, Laura is struggling to keep her family alive.

Simultaneously, Laura is trying to write the history section of a Congressional report titled the National Near-Earth Object Preparedness Strategy and Action Plan. This report will advise Congress that it must develop a system to detect and deflect PHOs, and the section Laura is working on cites several historical meteorite impacts as proof that the Earth is now undefended against a significant impact event.

A story about family, love, risk, and science, A History of Hazardous Objects contemplates how experiencing trauma and pain may help us secure a safer and more just world.
 

A Physics Today Best Book of the Year

The first biography of a pioneering scientist who made significant contributions to our understanding of dark matter and championed the advancement of women in science.

One of the great lingering mysteries of the universe is dark matter. Scientists are not sure what it is, but most believe it’s out there, and in abundance. The astronomer who finally convinced many of them was Vera Rubin. When Rubin died in 2016, she was regarded as one of the most influential astronomers of her era. Her research on the rotation of spiral galaxies was groundbreaking, and her observations contributed significantly to the confirmation of dark matter, a most notable achievement.

In Vera Rubin: A Life, prolific science writers Jacqueline Mitton and Simon Mitton provide a detailed, accessible overview of Rubin’s work, showing how she leveraged immense curiosity, profound intelligence, and novel technologies to help transform our understanding of the cosmos. But Rubin’s impact was not limited to her contributions to scientific knowledge. She also helped to transform scientific practice by promoting the careers of women researchers. Not content to be an inspiration, Rubin was a mentor and a champion. She advocated for hiring women faculty, inviting women speakers to major conferences, and honoring women with awards that were historically the exclusive province of men.

Rubin’s papers and correspondence yield vivid insights into her life and work, as she faced down gender discrimination and met the demands of family and research throughout a long and influential career. Deftly written, with both scientific experts and general readers in mind, Vera Rubin is a portrait of a woman with insatiable curiosity about the universe who never stopped asking questions and encouraging other women to do the same.

A New Scientist Book of the Year
A Physics Today Book of the Year
A Science News Book of the Year

The history of science is replete with women getting little notice for their groundbreaking discoveries. Cecilia Payne-Gaposchkin, a tireless innovator who correctly theorized the substance of stars, was one of them.

It was not easy being a woman of ambition in early twentieth-century England, much less one who wished to be a scientist. Cecilia Payne-Gaposchkin overcame prodigious obstacles to become a woman of many firsts: the first to receive a PhD in astronomy from Radcliffe College, the first promoted to full professor at Harvard, the first to head a department there. And, in what has been called “the most brilliant PhD thesis ever written in astronomy,” she was the first to describe what stars are made of.

Payne-Gaposchkin lived in a society that did not know what to make of a determined schoolgirl who wanted to know everything. She was derided in college and refused a degree. As a graduate student, she faced formidable skepticism. Revolutionary ideas rarely enjoy instantaneous acceptance, but the learned men of the astronomical community found hers especially hard to take seriously. Though welcomed at the Harvard College Observatory, she worked for years without recognition or status. Still, she accomplished what every scientist yearns for: discovery. She revealed the atomic composition of stars—only to be told that her conclusions were wrong by the very man who would later show her to be correct.

In What Stars Are Made Of, Donovan Moore brings this remarkable woman to life through extensive archival research, family interviews, and photographs. Moore retraces Payne-Gaposchkin’s steps with visits to cramped observatories and nighttime bicycle rides through the streets of Cambridge, England. The result is a story of devotion and tenacity that speaks powerfully to our own time.