Feature

  1. Humans

    Mutant Maps

    Struck by an analogy between genetic mutations and flaws in antique printed documents, a biologist has devised a method to analyze such flaws to pinpoint publication dates of rare, undated documents.

    By Peter Weiss
  2. Health & Medicine

    The Screen Team

    New and experimental methods of screening for colorectal cancer that patients find less unpleasant than current tests could take a bite out of the malignancy's toll.

    By Ben Harder
  3. Astronomy

    The Sun’s Halo in 3-D

    A new computer map of the sun's outer atmosphere and spacecraft ready for launch are expected to shed new light on the origin of solar eruptions and provide more accurate warning of their impact on Earth.