News

  1. Earth

    Hot spot deep beneath North America could have triggered quakes

    Mantle plume might have left trail of hot rock under continental US.

    By Erin Wayman
  2. Genetics

    Genes for body symmetry may also control handedness

    Lefties and righties can thank same genes that put hearts on left side for hand dominance, study of thousands of people’s DNA suggests.

    By Tina Hesman Saey
  3. Psychology

    Bad acts spark a ‘cheater’s high’

    Committing low-stakes acts of dishonesty enhances perpetrators’ moods.

    By Bruce Bower
  4. Earth

    Buried Saharan rivers might have been early expressways

    Humans might have migrated across the arid region along three once-lush waterways.