Feature

  1. Why Is This Whale Smiling?

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  2. Books of the Week

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  3. Quasars as Galaxy Cores: Support from the Past

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  4. Front Matter

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  5. Genetics

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  6. Anxious Scientists Hope Jupiter’s Radiation Won’t Disable Pioneer 10

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  7. Transit of Mercury

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  8. Mariner 10’s Cameras Cold but Functional

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  9. Earth Sciences

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  10. Books of the Week

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  11. Nuclear Power: Oversimplified

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  12. Biomedical Sciences

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