Feature

  1. Editor’s Letter

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  2. Messy Pilgrims Blamed for Puzzling Fossils

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  3. Front Matter

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  4. Future for Digital Snapshots Looks Crisp

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  5. Bacteria Offer Lessons to Drug Makers

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  6. Danish Astronomer Argues for a Changing Cosmos

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  7. Mars Craft Finds Evidence of a past Ocean

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  8. Volume Information

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  9. Gravity Tugs at the Center of a Priority Battle

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  10. New Drug Thwarts a Chronic Leukemia

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  11. Simplicity Makes for Superfast Computing

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  12. Biomedicine

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