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YACutting-Edge Science and Technology series.
This astronomy survey shows how astronomers past and present examine the electromagnetic radiation that reaches the earth (or its orbit) to determine the characteristics of the universe and the bodies within it. The technological advancements in telescopes and computer power help scientists to investigate such topics as exoplanets and dark matter. Photographs of space bodies, equipment, and the scientists profiled are included. Reading list. Bib., glos., ind.