Category: Features

The rock that shook the earth

The meteorite that brought about dinosaur extinction also sparked volcanic eruptions throughout the world’s oceans Leif Karlstrom, University of Oregon and Joseph Byrnes, University of Minnesota The end of the…

Every ring tells a story

The past comes clothed in rich detail, thanks to tree ring comparisons, archaeological evidence, oral traditions, linguistics, genetics, and other data Stephen E. Nash In the fall of 1282, a…