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www.messier.seds.org | ||
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science.nasa.gov
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| | | | | Astronomers estimate that the universe could contain up to one septillion stars - that's a one followed by 24 zeros. Our Milky Way alone contains more than | |
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messier.obspm.fr
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amazingsky.net
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| | | | | Amateur astronomers soon learn that spring is "galaxy season." But so is autumn ... if you know where to look. Each season brings a different and rich set of targets to view through telescopes. Summer and winter skies are dominated by the Milky Way and its assortment of glowing nebulas and sparkling star clusters, objects... | |
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blogs.nasa.gov
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