Features

• Synthetic Life: Overview/Synthetic Biology

  W. Wayt Gibbs   | May 1, 2004  |

• The Myth of the Beginning of Time: Observations

  Gabriele Veneziano   | May 1, 2004  |

• The Myth of the Beginning of Time: Overview/String Cosmology

  Gabriele Veneziano   | May 1, 2004  |

• Retooling the Global Positioning System

  From hikers navigating with handheld locators to pilots landing in zero-visibility conditions, the Global Positioning System now serves more than 30 million users. See what's coming next

  Per Enge   | May 1, 2004  |

• Freud Returns

  Neuroscientists are finding that their biological descriptions of the brain may fit together best when integrated by psychological theories Freud sketched a century ago

  Mark Solms   | May 1, 2004  |

• The Myth of the Beginning of Time

  String theory suggests that the big bang was not the origin of the universe but simply the outcome of a preexisting state

  Gabriele Veneziano   | May 1, 2004  | 11

• Synthetic Life: Life, but Not (Exactly) as We Know It

  W. Wayt Gibbs   | May 1, 2004  |

• The Myth of the Beginning of Time: Two Views of the Beginning

  Gabriele Veneziano   | May 1, 2004  |

• Questions about a Hydrogen Economy

  Much excitement surrounds the progress in fuel cells, but the quest for a hydrogen economy is no trivial pursuit

  Matthew L. Wald   | May 1, 2004  |

• Synthetic Life

  Biologists are crafting libraries of interchangeable DNA parts and assembling them inside microbes to create programmable, living machines

  W. Wayt Gibbs   | May 1, 2004  | 1

• The Transit of Venus

  When Venus crosses the face of the sun this June, scientists will celebrate one of the greatest stories in the history of astronomy

  Steven J. Dick   | May 1, 2004  |