Uncategorized

  1. Earth

    Tsunami! At Lake Tahoe?

    Surprised tourists could catch the ultimate wave.

    By Kathryn Brown
  2. Planetary Science

    X rays reveal Eros’ primitive nature

    Aided by a blast of X rays from the sun, a spacecraft orbiting the near-Earth asteroid 433 Eros has gathered preliminary evidence that the rock is a primitive relic, apparently unchanged since the birth of the solar system.

    By Ron Cowen
  3. Physics

    Light pulses flout sacrosanct speed limit

    Faster-than-light firsts: Restless laser pulse leaves before it arrives, while merging microwaves send out a superluminal scout.

    By Peter Weiss
  4. Astronomy

    Survey confirms composition of the cosmos

    A team of astronomers announced this week that after measuring the redshifts of 100,000 galaxies, they have new evidence for what makes up most of the mass of the universe.