More from Author

  • 16 Aug 1999

    Astronomers have uncovered the first evidence of a planet orbiting two stars at once.

  • 9 Aug 1999

    The last total eclipse of the millennium will also be the most watched in history--regardless of the weather.

  • 14 Jul 1999

    Ticks, already infamous as disease carriers, get another black mark in tomorrow's New England Journal of Medicine. A paper there reports that ticks can infect people with a new, potentially fatal, disease.

  • 9 Jul 1999

    Could a tiny change in the angle of the Earth's orbital axis trigger a cascade of events that turned an ancient Eden into the Sahara desert? Yes, says a report in the 15 July issue of Geophysical Research Letters.

  • 6 Jul 1999

    Scientists say they have found, for the first time, traces of an ancient supernova explosion imbedded in Earth.

  • 15 Jun 1999

    Physicists have created a 1-meter-high fountain of cold cesium atoms that could be used to build the most precise timepiece ever known. Described in the 7 June issue of Physical Review Letters, the new "clock" would be more than 10 times as accurate as any other known chronometer.

  • 11 Jun 1999

    The first neutrinos have been spotted colliding with heavy water molecules in a giant tank at the bottom of an Ontario nickel mine.

  • 10 Jun 1999

    Physicists working in an iron mine almost a kilometer underground have detected the "shadow" the moon casts when it blocks cosmic rays streaming toward Earth. Scientists, who announced the feat last week, say it's a step toward identifying the mysterious source of the rays.

  • 26 May 1999

    In a case of genetic thievery of astounding proportions, researchers describe in today's Nature how a hot-springs bacterium snatched nearly a quarter of its genes from another species.

  • 24 May 1999

    IBM announced today that it will spend $29 million to launch an international collaboration to train supercomputer firepower on business problems, such as managing investment risk and scheduling airline routes.