This Day In Astro History

Gene Cernan aboard the Lunar Rover during the first EVA

December 11

1972 - Apollo 17, the last mission to the Moon, lands on the lunar surface.

1863 - Annie Jump Cannon's birthday, pioneer  American classifier of stellar spectra, Cannon was an assistant at the Harvard Observatory beginning in 1896. She brought to completion the Henry Draper Catalog from 1918 to 1924, nine volumes, which became the basis for all modern astronomical stellar spectroscopy. It contains 225,320 stars. The classification system by temperature was her concept, and was universally adopted. Cannon became curator of astronomical photographs of the Observatory in 1911 and professor of astronomy in 1938. She published the Draper Catalogue Extension in two volumes (1925 and 1949), with thousands more stars catalogued. These works were of enormous value to the science of astronomy. Annie Jump Cannon has been inducted into the National Women's Hall of Fame. (USA)
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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