News

  1. Chemistry

    Miracle fruit secret revealed

    Bizarre berry works by sensitizing the tongue's sweet sensors to acidic flavors.

    By Rachel Ehrenberg
  2. Health & Medicine

    B12 shortage linked to cognitive problems

    Subtle B12 deficiency plagues a surprising share of the elderly and may harm the brain, studies suggest.

    By Janet Raloff
  3. Health & Medicine

    Nose divides sweet from foul

    The way scent-detection machinery is laid out suggests that people are born with some innate olfactory preferences.

    By Nick Bascom
  4. Physics

    Neutrinos seen to fly faster than light

    Though few physicists expect it to withstand scrutiny, confirmation of the observation would shake physics to its core.