Harlow Shapley Book order

Harlow Shapley, hailed as the "Modern Copernicus," fundamentally shifted our understanding of the cosmos. He discovered that our Sun is not at the galaxy's center but resides in an unassuming location, using variable stars to ascertain the Milky Way's immense size. His "liquid water belt" theory foreshadowed the modern concept of a habitable zone. Shapley's work challenged established notions, placing Earth and the Sun within a vaster, nondescript universe.