Feature

  1. Health & Medicine

    Year in review: Zika virus devastates Brazil and spreads fear across Americas

    The increase in microcephaly in Brazil has spread fear of Zika infection across the Americas.

    By Meghan Rosen
  2. Astronomy

    Year in review: A planet lurks around the star next door

    If people ever travel beyond the solar system, the newly discovered exoplanet around Proxima Centauri is likely to be a first stop.

    By Christopher Crockett
  3. Genetics

    Year in review: ‘Three-parent baby’ technique raises hope and concern

    Safety and ethical concerns surround controversial mitochondrial replacement therapy.

    By Tina Hesman Saey
  4. Climate

    Year in review: Sea ice loss will shake up ecosystems

    Researchers are studying the complex biological consequences of polar melting and opening Arctic passageways.