Uncategorized

  1. Paleontology

    The Age of Dinosaurs may have ended in springtime

    Fossilized fish bones suggest that the massive asteroid strike at the end of the Cretaceous Period occurred during the Northern Hemisphere’s spring.

    By Sid Perkins
  2. Genetics

    Africa’s oldest human DNA helps unveil an ancient population shift

    Long-distance mate seekers started staying closer to home about 20,000 years ago.

    By Bruce Bower
  3. Planetary Science

    An ancient impact on Earth led to a cascade of cratering

    For the first time, scientists have discovered clusters of craters on Earth that were formed by the impacts of material thrown out of a larger crater.

    By Sid Perkins
  4. Astronomy

    A rare collision of dead stars can bring a new one to life

    These carbon- and oxygen-covered stars may have formed from an unusual merging of two white dwarfs.