News

  1. Planetary Science

    Small exoplanet discovered

    Astronomers have discovered the smallest planet known that is beyond the solar system and orbits an ordinary parent body.

    By Ron Cowen
  2. Space

    Making an impression

    In its seventh day after successfully landing on the Red Planet, the Phoenix Lander digs its first trench and is ready to start its ice-hunting.

    By Ashley Yeager
  3. Health & Medicine

    Microbes clean up mercury

    Researchers think a microbe could clean up mercury-laced Native American artifacts.

    By Rachel Ehrenberg
  4. Life

    Replaying evolution

    By watching bacteria evolve in the lab for 20 years, researchers show that evolution may be rather capricious.