News

  1. Space

    Moon’s water may have earthly origins

    Ratio of hydrogen to deuterium suggests molecule on both orbs has a common source.

    By Andrew Grant
  2. Earth

    The Arctic was once warmer, covered by trees

    Pliocene epoch featured greenhouse gas levels similar to today's but with higher average temperatures.

    By Erin Wayman
  3. Animals

    Malaria mosquito dosed with disease-fighting bacteria

    After thousands of tries, lab gets parasite-carrying insect to catch Wolbachia.

    By Susan Milius
  4. Psychology

    Brain training technique gets a critique

    In a new study, a popular style of memory workout leaves reasoning and mental agility flat.

    By Bruce Bower
  5. Health & Medicine

    Black women may have highest multiple sclerosis rates

    Large study counters common assumption that whites get MS more.