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Favorites by Girnov (10 subjects)
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Favorites by pseudoprime (10 subjects)
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Favorites by ptj (10 subjects)
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Favorites by TheNebula (6 subjects)
Galaxy Zoo Talk
Favorites by Girnov (10 subjects)
Favorites by pseudoprime (10 subjects)
Favorites by ptj (10 subjects)
Favorites by TheNebula (6 subjects)