News

  1. Earth

    El Niños came more often in Middle Ages

    Analyses of layered sediments from a South American lake suggest that the worldwide warm spells known as El Niños occurred more frequently about 1,200 years ago, when Europe was entering the Middle Ages, than they do today.

    By Sid Perkins
  2. Paleontology

    Forged fossil is a fish-eating fowl

    Detailed analyses of Archaeoraptor, a forged fossil once thought to be a missing link between dinosaurs and birds, reveal that the majority of that fake comes from an ancient, fish-eating bird.

    By Sid Perkins
  3. Planetary Science

    Martian Radiation: Giving off a faint X-ray glow

    Astronomers have for the first time taken an X-ray image of the Red Planet.