News

  1. Humans

    An ancient civilization’s wet ascent, dry demise

    Cave data suggest that ancient rainfall patterns swayed the course of Classic Maya societies.

    By Bruce Bower
  2. Life

    Seaweed-threatened corals send chemical SOS to fish

    The cry for help summons allies to graze away the algal overgrowth.

    By Susan Milius
  3. Chemistry

    Hydrogen fuel edges a step closer

    A new chemical setup creates clean-burning gas by mimicking plant photosynthesis.

    By Rachel Ehrenberg
  4. Earth

    Sea level rise overflowing estimates

    Future sea level rise might exceed estimates due to environmental feedbacks.

    By Tanya Lewis
  5. Space

    Super-Earth joins ranks in life-supporting zone

    The large exoplanet lies just 42 light-years away.