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  1. Physics

    How to hide a bump with some logs

    Physicists take a step toward true invisibility with a cloak that makes objects invisible from multiple points of view.

    By Lisa Grossman
  2. Physics

    Next on CSI: Surface-enhanced Raman spectroscopy

    The modification of a powerful chemical analysis technique could make it the gold standard in detecting trace substances.

    By Rachel Ehrenberg
  3. Earth

    Ice drilling nets shrimpy surprise

    Underwater camera captures an Antarctic crustacean, as a serendipitous part of a larger ice shelf study.

    By Alexandra Witze
  4. Physics

    Body heat may draw particles into breathing range

    Computer simulations suggest thermal plumes may trap microbes, pollen and dust near a person’s head.