Features

• Hubble's Top 10

  As they wait for the space telescope to be serviced one last time, astronomers reflect on its discoveries over the past 16 years

  Mario Livio   | July 1, 2006  |

• The Quest for the Superlens

  Built from "metamaterials" with bizarre, controversial optical properties, a superlens could produce images that include details finer than the wavelength of light that is used

  John B. Pendry and David R. Smith   | July 1, 2006  |

• A Power Grid for the Hydrogen Economy

  Cryogenic, superconducting conduits could be connected into a "SuperGrid" that would simultaneously deliver electrical power and hydrogen fuel

  Paul M. Grant, Chauncey Starr and Thomas J. Overbye   | July 1, 2006  | 3

• CSI: The Reality

  Attorneys, investigators and educators have felt the impact of television's popular forensics programs

  Max M. Houck   | July 1, 2006  |

• What Birds See

  Evolution has endowed birds with a system of color vision that surpasses that of all mammals, including humans

  Timothy H. Goldsmith   | July 1, 2006  | 1

• A Farewell to Keywords

  The reigning obsession with search technology has elicited new ways of using images to track down information on the Web

  Gary Stix   | July 1, 2006  |

• Stem Cells: The Real Culprits in Cancer?

  A dark side of stem cells--their potential to turn malignant--is at the root of a handful of cancers and may be the cause of many more. Eliminating the disease could depend on tracking down and destroying these elusive killer cells

  Michael F. Clarke and Michael W. Becker   | July 1, 2006  |