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Naturwissenschaftler
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Scientists
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Bilder des Hubble - Teleskops
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Pictures of the Hubble Space Telescope
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Steven Hawking
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Urknall
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Big Bang
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Sonnenfinsternis / Mondfins.
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Solar Eclipse / Lunar Eclipse
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Das Sonnensystem
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The Solar System
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Braune & Weisse Zwerge, Rote Riesen, Extrasolare Planeten
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Brown Dwarfs, White Dwarfs, Red Giants, Extrasolar Planets
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Andere Sonnensysteme
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Other Solar Systems
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Astronomen
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Astronoms
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Fritz Zwicky
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