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  1. Astronomy

    Senior star may have comets

    Astronomers have found what could be the first evidence of water-bearing objects that orbit a star other than the sun.

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  2. Health & Medicine

    Could this be the end of the monthly period?

    Two compounds stop menstruation in monkeys, suggesting that similar drugs might someday enable women to bypass monthly bleeding.

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  3. Forest in the Clouds

    See whether BatCam catches a tropical bat visiting a banana, or review QuetzelCam highlights for a murky but impressive view of how such a long-tailed bird jams its plumage into a nestbox. Or, if the cameras aren’t picking up anything in particular, visitors can listen to short recorded commentaries from such denizens as prong-billed barbets […]

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  4. From the August 15, 1931, issue

    ANOTHER TEMPLE TO THE WIND GOD Near the little Indian village of Prairieville–the Mexican name is Calixtlahuaca–archaeologists have made a rare and unusual discovery. They have found one of those circular temples to the God of the Wind, seen by the soldiers of Cortez, but not one of which was ever afterward found on the […]

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  5. Health & Medicine

    Protein may post lung cancer warning

    The protein Ki-67, sometimes present on tissue lining the lungs, may act as a warning sign of lung cancer risk for ex-smokers.

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  6. Health & Medicine

    Once a cesarean, always a cesarean?

    Expectant mothers who've already given birth by cesarean section put themselves at increased risk of uterine rupture by trying vaginal birth.

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  7. Health & Medicine

    Cox-2 shows up in stomach cancers

    The inflammatory enzyme Cox-2 is present in stomach tumors, suggesting that drugs that inhibit the enzyme might help supress tumor formation.

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  8. Health & Medicine

    New drug fights a chronic leukemia

    A genetically engineered drug that fuses an antibody to a toxin attacks cancerous cells in hairy-cell leukemia.

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  9. Physics

    Electrons rock and roll in nanotubes

    New probes of tiny carbon nanotubes reveal that the wavelike, quantum nature of electrons plays a role in tube properties and may even make possible novel electronic components that harness quantum effects.

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  10. Astronomy

    Light’s Debut: Good Morning, Starshine!

    Astronomers have at last detected signs of one of the earliest and least-understood eras in the universe: the murky time just before the first stars and quasars flooded the cosmos with light.

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  11. Animals

    Bat bites bird. . .in migration attacks

    The largest bat in Europe may hunt down migrating birds.

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  12. Tech

    New method lights a path for solar cells

    Using a technique in which chemical ingredients assemble themselves, a research team has developed a potentially inexpensive way of making solar cells.

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