Uncategorized

  1. Astronomy

    Are solar eruptions triggered a loopy way?

    Astronomers have identified a new solar mechanism that may explain some coronal mass ejections.

    By Ron Cowen
  2. Health & Medicine

    Panel ups RDAs for some antioxidants

    An Institute of Medicine panel reported that dietary antioxidants such as vitamins A and E can limit cellular damage from free radicals but warned that studies in people have never adequately established a direct connection between antioxidant consumption and prevention of chronic disease.

    By Janet Raloff
  3. Tech

    Ribbon to the Stars

    Advances in one of the tiniest of technologies—carbon nanotubes—is bringing the concept of a space elevator closer to reality.

    By Ron Cowen

  4. A Man’s Job

    Sperm contain an unexpected payload of RNA, a discovery offering insight into infertility, cloning, and contraception.