News

  1. Space

    Satellite collision: brief update on Hubble and debris

    In an unprecedented collision, two large satellites crashed into each other in low-Earth orbit on February 10. The effect on a planned Hubble repair mission remains unclear.

    By Ron Cowen
  2. Space

    New window on the high-energy universe

    New telescope finds strange behavior in gamma-ray bursts, and also documents the highest energy burst known.

    By Ron Cowen
  3. Tech

    Catalyst knocks out a smog maker

    Unique system could help truckers meet new emissions standards.

    By Janet Raloff
  4. Plants

    Animals’ jaundice pigment found in plants

    Bilirubin, a compound well known in animals, gives seed fuzz its intense orange.