mei 222013
 
Cosmic Impact Just After the Latest Ice Age Confirmed?

  About 12,800 years ago when the Earth was warming and emerging from the last Ice Age, a dramatic and anomalous event occurred that abruptly reversed climatic conditions back to near-glacial state. According to James Kennett, UC Santa Barbara emeritus professor in earth science, this climate switch fundamentally –– and remarkably –– occurred in only [continue reading]

apr 292012
 
Scientists Find History of Asteroid Impacts in Earth Rocks

  Research by NASA and international scientists concludes giant asteroids, similar or larger than the one believed to have killed the dinosaurs, hit Earth billions of years ago with more frequency than previously thought. To cause the dinosaur extinction, the killer asteroid that impacted Earth 65 million years ago would have been almost 6 miles [continue reading]