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  [] Discover

  Discover Media LLC.  |  (̱) |  (6ȸ)  | 

  ⱸ[12]    108,000 108,000 (0%)

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  [ù] Sky & Telescope

  New Trock Media LLC.  |  (̱) |  (12ȸ)  | 

  ⱸ[12]    277,200 252,000 (9%)

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  [ù] BBC Science Focus ( BBC Focus)

  BBC  |  () |  (13ȸ)  | 

  ⱸ[12]    328,900 299,000 (9%)

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  [] SKEPTIC ƽ (̱)

  The Skeptics Society  |  (̱) |  谣 (4ȸ)  | 

  ⱸ[12]    96,000 88,000 (8%)

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  [] Astronomy

  Dushkin/McGraw-Hill  |  (̱) |  (12ȸ)  | 

  ⱸ[12]    216,000 216,000 (0%)

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  [ù] ʫ ( ȣó)

  ȫー  |  Ϻ (Ϻ) |  (12ȸ)  | 

  ⱸ[12]    226,800 226,800 (0%)

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  [ù] (õ̵)

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  ⱸ[12]    226,800 226,800 (0%)

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