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SlideshowReport

“Windows” Through the Atmosphere

Description
Different types of electromagnetic radiation penetrate into Earth’s atmosphere in varying amounts. Visible light, radio waves,
short-wavelength infrared, and long-wavelength ultraviolet reach all the way to Earth’s surface. The other types of radiation are
absorbed or scattered by the gases in the air at different characteristic altitudes (indicated by heights of windows). Although the atmosphere
does not have actual “windows,” astronomers use the term to characterize the passage of radiation through it
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