| Astronomy History - Johannes Kepler: Brief biography highlighting his status as a defender of Copernicus and a formulator of planetary-motion laws. |
| Johannes Kepler: A short biography. |
| Johannes Kepler: Includes detailed biography, online links, outlines of some of his works, quotes, and reading list. |
| Johannes Kepler and the Music of the Spheres: An article by David Plant describing Kepler's astrological beliefs. |
| Kepler, Johannes (1571-1630): Encyclopedia entry provides a brief biography of this German astronomer and mathematician. |
| More Kepler, by Michael Fowler: Part two of a biography, discussing Kepler's investigations of planetary motion and gravity. |
| Starry Messenger: Johannes Kepler: Biography, and information on Kepler's mathematical techniques, poetry, and interest in astrology. From the Whipple Museum of the History of Science. |
| Tycho Brahe and Johannes Kepler: Short biographies. |
Classical
