Uncategorized

  1. Archaeology

    Human ancestors engraved abstract patterns

    Indonesian Homo erectus carved zigzags on a shell at least 430,000 years ago.

    By Bruce Bower
  2. Cosmology

    Most precise snapshot of the universe unveiled

    New results from the Planck satellite provide the most detailed look yet of the makeup of the universe.

    By Christopher Crockett
  3. Tech

    Designing robots to help in a disaster

    Ideally, robots could take over for human crews in disaster zones. But seemingly simple tasks, such as walking, communicating and staying powered up, still pose big challenges.

    By Meghan Rosen
  4. Earth

    Studying a volcano in a war zone

    New isotope analyses offer bad news for the people of Goma, a burgeoning city in the Democratic Republic of the Congo: Mount Nyiragongo may be more dangerous than expected.