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  1. Health & Medicine

    Head-to-Head Comparison: Coils top clips in brain-aneurysm treatment

    Tiny platinum coils inserted into a ruptured brain aneurysm to seal off the bleeding appear safer in the long run for some patients than traditional brain surgery does.

    By Nathan Seppa
  2. Plants

    Day-Glo Flowers: Some bright blooms naturally fluoresce

    Some common flowers fluoresce but the glow most likely has little effect on pollinators.

    By Susan Milius
  3. Chemistry

    Greener Nylon: One-pot recipe could eliminate industrial leftovers

    Researchers have devised a one-step process for making the primary ingredient of nylon.

    By Aimee Cunningham
  4. Astronomy

    Farthest Bang: A burst that goes the distance

    The most-distant gamma-ray burst ever found hails from 900 million years after the birth of the universe, around the time when stars and galaxies first flooded the universe with light.