News

  1. Tech

    Cloaked eye still sees

    Researchers have proposed a model that would allow sensors to send and receive information virtually undetected.

    By Laura Sanders
  2. Plants

    Yo, aphid, I’m red and I’m bad

    Apple trees support the idea that red fall colors are a warning signal to insects.

    By Susan Milius
  3. Space

    Massive solar flares captured in 3-D

    Distance between orbiting STEREO craft allows better imaging of coronal mass ejections.

    By Sid Perkins
  4. Health & Medicine

    Hypoglycemia linked to dementia

    Episodes of low blood sugar that require medical attention seem to increase a person’s risk of developing dementia in old age, a study in people with type 2 diabetes shows.