Feature

  1. Planetary Science

    Year in review: Business booming on Mars

    Mars now has seven robots studying it and together they have given scientists their best view of any planet in the solar system other than Earth.

    By Alexandra Witze
  2. Humans

    Year in review: Genes, bones tell new Clovis stories

    The genes and bones of the Clovis people reveal the range and legacy of the early North Americans.

    By Bruce Bower
  3. Climate

    Year in review: Climate warnings heat up

    Climate change is here and the world is unprepared, scientists and policy makers declared multiple times in 2014.

    By Beth Mole
  4. Genetics

    Year in review: Life’s complexity recoded

    New genetic letters in bacteria and a simplified yeast chromosome showcase scientists' advances in understanding the simplicity and complexity of life.