News

  1. Life

    More than a chicken, fewer than a grape

    A decade after the completion of the Human Genome Project, the exact number of human genes remains elusive.

    By Tina Hesman Saey
  2. Space

    CSI: Asteroid Belt

    Astronomers hunt clues in the rubble of a recent collision between two space rocks.

    By Ron Cowen
  3. Life

    New species a little nipper

    A mongoose-like creature from Madagascar is the first new carnivore to be discovered in more than two decades.

    By Rachel Ehrenberg
  4. Health & Medicine

    Implants help heroin addicts kick habit

    Installing a slow-release drug under the skin enables some abusers of illicit and prescription drugs to get through withdrawal, a new study shows.