Image Credit: Optical: DSS; Infrared: NASA/JPL-Caltech;
X-ray: NASA/CXC/PSU/ K.Getman, E.Feigelson, M.Kuhn & the MYStIX team
"In most sciences one generation tears down what another has built, and what one has established another undoes. In mathematics alone each generation adds a new story to the old structure." - Hermann Hankel
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