Feature

  1. Muscle Cells in Damaged Hearts May Divide

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  2. Zapping Curbs Alien Spinach

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  3. Dust Glow Hints at Wave of Early Star Birth

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  4. Possible Alzheimer’s Gene Stirs Conflict

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  5. Behavior

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  6. Biomedicine

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  7. Astronomy

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  8. The Globe inside Our Planet

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  9. Physics

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  10. The Overworked Heart

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  11. Back Matter

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  12. Chemistry

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