Pioneers of Science

A sequence of illustrated lectures surveys the development of astronomy and related physics through the lives and work of key figures, presenting their discoveries and methods in accessible language. Beginning with early heliocentric proposals and observational advances, it follows contributions by Copernicus, Tycho, Kepler, Galileo, Descartes, and Newton, and proceeds to later investigators who measured the velocity of light, stellar distances, and discovered planets, asteroids, and nebulae. The text alternates concise biographical sketches with clear explanations of instruments, geometric and physical ideas, and empirical evidence, using diagrams to render complex laws intelligible. Final lectures treat comets, meteors, tides, and theories of planetary stability and evolution.