1571-1630

A biography of Johannes Kepler, the astronomer and mathematician who formulated the three laws of planetary motion.

While her mother undergoes radical cancer treatment, eleven-year-old Ella stays with her father's mother in Albuquerque, New Mexico, where she learns about grammar and family history, and helps investigate the theft of an extremely rare book from her grandmother's library.

Examines the life and accomplishments of Johannes Kepler, the seventeenth-century astronomer responsible for discovering how the planets move in their orbits around the sun, and includes a time line, and a selection of primary source transcriptions and images.