We all know the role of Johannes Kepler in the revolution of astronomy. The theoretical explanation of the motion of all planets and celestial bodies in space comes from Kepler’s three laws. But it was the astronomer Maria Cunitz who played a pioneering role in making Kepler’s theory more precise and easier to understand. Maria Cunitz was an extraordinary, yet often underestimated, figure of the astronomical revolution and a contemporary of Johannes Kepler.

