News

  1. Health & Medicine

    Urine test may improve prostate screening

    Levels of two biomarkers might clarify whether a man with an iffy PSA score needs to get a biopsy, a study finds.

    By Nathan Seppa
  2. Materials Science

    Now, an invisibility cloak you can see

    Physicists have developed a device that can hide objects in visible wavelengths.

    By Devin Powell
  3. Life

    A cougar in Connecticut

    Using DNA and trailside cameras, wildlife biologists retrace the 18-month, 2,000-mile journey of a young male cat.

    By Nadia Drake
  4. Life

    Wasp has built-in Facebook

    An insect species with a tricky social life has a special facility for telling one bug's mug from another.