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Along with the traditional optical window, many new windows have been opened on galaxies in the last two decades, made possible by new developments in groundbas

For 20 years the Hubble Space Telescope has been hurtling around our planet at 17,500 mph sending spectacularly sharp images of the universe back to Earth. Hubb

A thought provoking study of the powerful impact of images in guiding astronomers' understanding of galaxies through time.

A detailed, informative discussion ranging from the beliefs of ancieant time to the most recent revelations of our scientific instruments in space.