This Day In Astro History


September 10

James E. Keeler's birthday, pioneer American spectroscopist and astrophysicist. He carried out important spectroscopic work on 120,000 nebulae. In 1895 Keeler showed that different parts of Saturn's rings rotate at different velocities, which demonstrated that the rings are not solid bodies but instead are a collection of small objects in independent orbits. He won the Henry Draper Medal in 1899. Co-founder of the Astrophysical Journal. James Keeler died in 1900.
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It is my conclusion that human evolution and the motions of matter in space are intrinsically linked. The observation and understanding of the complexity of biological history on Earth cannot be complete without the tandem observation and understanding of a dynamic greater cosmos. - SpaceGene