Uncategorized

  1. For geneticists, interference becomes an asset

    A new method of disrupting genes, called RNA interference, works in mouse cells.

    By John Travis
  2. Astronomy

    X-ray Data Reveal Black Holes Galore

    Using a sensitive, new X-ray telescope, astronomers have identified the origin of the high-energy part of the X-ray background and found that supermassive black holes at the cores of galaxies are far more numerous than visible-light surveys indicate.

    By Ron Cowen
  3. Math

    Fractal Roots and Artful Math

    The term “mathematical art” usually conjures up images of M.C. Escher’s endless staircases, Möbius-strip ants, and mind-boggling tilings. Or it might remind one of the intimate intertwining of mathematics and art during the Renaissance with the development of perspective painting and eye-teasing stagecraft.