News

  1. Planetary Science

    Mars clays may have volcanic source

    Deposits didn’t need flowing water to form, new research suggests.

    By Erin Wayman
  2. Chemistry

    Too-young caterpillars like scent of sex

    Larvae respond to mate-attracting pheromones, raising evolutionary questions about what a very grown-up chemical signal could mean to them.

    By Susan Milius
  3. Humans

    Herders, not farmers, built Stonehenge

    Farming’s temporary demise in ancient Britain may have spurred the creation of the iconic stone circle.

    By Bruce Bower
  4. Planetary Science

    Voyager chasing solar system’s edge

    On the 35th anniversary of the spacecraft’s launch, scientists ponder when it will move beyond the sun’s reach.

    By Nadia Drake
  5. Life

    Team releases sequel to the human genome

    ENCODE reveals the machinery that switches genes on and off.