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SlideshowReport

Views of the Milky Way’s Central Regions

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Description
(a) An optical image in the direction of Sagittarius, toward the Milky Way’s center. The dark regions are interstellar gas and
dust clouds that prevent visible light from beyond them from reaching us. (b) An infrared image of the same area of the sky,
showing many more distant stars whose infrared radiation passes through the clouds and is collected by our telescopes.
(a & b: Howard McCallon and Gene Kopan/2 MASS Project)
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