News

  1. Earth

    Inhaled particles damage vascular lining

    Airborne soot and other pollutant particles can impair the ability of tiny vessels in the body to properly regulate blood flow, an animal study finds.

    By Janet Raloff
  2. Math

    Con Artist: Scanning program can discern true art

    A new mathematical tool distills painting style into an array of statistics as a potential means to spot forgeries.

    By Erica Klarreich
  3. Astronomy

    Extrasolar Planet News: Superplanet or brown dwarf?

    New observations of an oddball planetary system 150 light-years from Earth suggest that some planets either are superheavy, more than 17 times as massive as Jupiter, or that they form from disks of gas and dust that encircle not just a single star, but two starlike objects.