Uncategorized

  1. The Next Ocean

    Increasing carbon dioxide in the air is changing the pH of the ocean, which could mean very different communities of sea creatures.

    By Susan Milius
  2. Health & Medicine

    Beyond Blood

    Bloodless MRI seeks a more direct window into the working brain than conventional techniques.

    By Ewen Callaway
  3. Astronomy

    Supernova Outbreak: X rays signal earliest alert

    Thanks to a lucky break and an overactive galaxy, astronomers report the earliest detection yet of a normal supernova—the explosive death of a massive star.

    By Ron Cowen
  4. Humans

    From the March 5, 1938, issue

    Shoes that give silent testimony for safety measures, ten moons and counting for Saturn, and finding oil in impossible places.