In The Astronomer and the Witch, Ulinka Rublack pieces together the tale of this extraordinary episode in Kepler's life, one that takes us to the heart of his changing world.

Johannes Kepler (1571-1630) was one of the most admired astronomers who ever lived and a key figure in the scientific revolution. A defender of Copernicus ́ s sun-centred universe, he famously discovered that planets move in ellipses, and defined the three laws of planetary motion. Perhaps less well known is that in 1615, when Kepler was at the height of his career, his widowed mother Katharina was accused of witchcraft. The proceedings led to a criminal trial that lasted six years, with Kepler conducting his mother's defence. In The Astronomer and the Witch, Ulinka Rublack pieces together the tale of this extraordinary episode in Kepler's life, one which takes us to the heart of his changing world. First and foremost an intense family drama, the story brings to life the world of a small Lutheran community in the centre of Europe at a time of deep religious and political turmoil - a century after the Reformation, and on the threshold of the Thirty Years' War. Kepler's defence of his mother also offers us a fascinating glimpse into the great astronomer's world view, on the cusp between Reformation and scientific revolution. While advancing rational explanations for the phenomena which his mother's accusers attributed to witchcraft, Kepler nevertheless did not call into question the existence of magic and witches. On the contrary, he clearly believed in them. And, as the story unfolds, it appears that there were moments when even Katharina's children struggled to understand what their mother had done...

Drawing on real historical documents but infused with the intensity of imagination, sly humor, and intellectual fire for which award-winning author Rivka Galchen’s writing is known, Everyone Knows Your Mother Is a Witch is a tale for our time—the story of how a community becomes implicated in collective aggression and hysterical fear. The year is 1619, in the German duchy of Württemberg. Plague is spreading. The Thirty Years War has begun, and fear and suspicion are in the air throughout the Holy Roman Empire. In the small town of Leonberg, Katherina Kepler is accused of being a witch. An illiterate widow, Katherina is known by her neighbors for her herbal remedies and the success of her children, including her eldest, Johannes, who is the Imperial Mathematician and renowned author of the laws of planetary motion. It’s enough to make anyone jealous, and Katherina has done herself no favors by being out and about and in everyone’s business. So when the deranged and insipid Ursula Reinbold (or as Katherina calls her, the Werewolf) accuses Katherina of offering her a bitter, witchy drink that has made her ill, Katherina is in trouble. Her scientist son must turn his attention from the music of the spheres to the job of defending his mother. Facing the threat of financial ruin, torture, and even execution, Katherina tells her side of the story to her friend and next-door neighbor Simon, a reclusive widower imperiled by his own secrets. Provocative and entertaining, Galchen’s bold new novel touchingly illuminates a society, and a family, undone by superstition, the state, and the mortal convulsions of history.

Set against the backdrop of the witchcraft trial of his mother, this lively biography of Johannes Kepler – 'the Protestant Galileo' and 16th century mathematician and astronomer – reveals the surprisingly spiritual nature of the quest of early modern science. In the style of Dava Sobel's Galileo's Daughter, Connor's book brings to life the tidal forces of Reformation, Counter–Reformation, and social upheaval. Johannes Kepler, who discovered the three basic laws of planetary motion, was persecuted for his support of the Copernican system. After a neighbour accused his mother of witchcraft, Kepler quit his post as the Imperial mathematician to defend her. James Connor tells Kepler's story as a pilgrimage, a spiritual journey into the modern world through war and disease and terrible injustice, a journey reflected in the evolution of Kepler's geometrical model of the cosmos into a musical model, harmony into greater harmony. The leitmotif of the witch trial adds a third dimension to Kepler's biography by setting his personal life within his own times. The acts of this trial, including Kepler's letters and the accounts of the witnesses, although published in their original German dialects, had never before been translated into English. Echoing some of Dava Sobel's work for Galileo's Daughter, Connor has translated the witch trial documents into English. With a great respect for the history of these times and the life of this man, Connor's accessible story illuminates the life of Kepler, the man of science, but also Kepler, a man of uncommon faith and vision.

The extraordinary, unlikely tale of Tycho Brahe and Johannes Kepler and their enormous contribution to astronomy and understanding of the cosmos is one of the strangest stories in the history of science. Kepler was a poor, devoutly religious teacher with a genius for mathematics. Brahe was an arrogant, extravagant aristocrat who possessed the finest astronomical instruments and observations of the time, before the telescope. Both espoused theories that seem off-the-wall to modern minds, but their fateful meeting in Prague in 1600 was to change the future of science. Set in one of the most turbulent and colourful eras in European history, when medieval was giving way to modern, Tycho and Kepler is a double biography of these two remarkable men.

A committed Lutheran excommunicated from his own church, a friend to Catholics and Calvinists alike, a layman who called himself a “priest of God,” a Copernican in a world where Ptolemy still reigned, a man who argued at the same time for the superiority of one truth and the need for many truths to coexist—German astronomer Johannes Kepler was, to say the least, a complicated figure. With The Pursuit of Harmony, Aviva Rothman offers a new view of him and his achievements, one that presents them as a story of Kepler’s attempts to bring different, even opposing ideas and circumstances into harmony. Harmony, Rothman shows, was both the intellectual bedrock for and the primary goal of Kepler’s disparate endeavors. But it was also an elusive goal amid the deteriorating conditions of his world, as the political order crumbled and religious war raged. In the face of that devastation, Kepler’s hopes for his theories changed: whereas he had originally looked for a unifying approach to truth, he began instead to emphasize harmony as the peaceful coexistence of different views, one that could be fueled by the fundamentally nonpartisan discipline of mathematics.

Heavenly Intrigue is the fascinating, true account of the seventeenth-century collaboration between Johannes Kepler and Tycho Brahe that revolutionized our understanding of the universe–and ended in murder.One of history’s greatest geniuses, Kepler laid the foundations of modern physics with his revolutionary laws of planetary motion. But his beautiful mind was beset by demons. Born into poverty and abuse, half-blinded by smallpox, he festered with rage, resentment, and a longing for worldly fame. Brahe, his mentor, was a flamboyant aristocrat who had spent forty years mapping the heavens with unprecedented accuracy–but he refused to share his data with Kepler. With Brahe’s untimely death in Prague in 1601, rumors flew across Europe that he had been murdered. But it took twentieth-century forensics to uncover the poison in his remains, and the detective work of Joshua and Anne-Lee Gilder to identify the prime suspect–the ambitious, envy-ridden Kepler himself. A fast-paced, true-life account that reads like a thriller, Heavenly Intrigue is a remarkable feat of historical re-creation.