Standing in the 29-degree air outside a building on the University of Alaska Fairbanks campus, Josephine Galipon held a pinkie-size vial that may have contained tiny organisms locked in a coma for thousands of years. Galipon, a researcher with Keio University in Japan, needed to work outside a heated room so as not to disturb […]
No one knows for certain why the Clovis people and iconic beasts — mastodon, mammoth and saber-toothed tiger — living some 12,800 years ago suddenly disappeared. However, a discovery of widespread platinum at archaeological sites across the U.S. by three University of South Carolina archaeologists has provided an important clue in solving this enduring mystery. The research […]
The rise and fall of acid rain is a global experiment whose results are preserved in the geologic record. By analyzing samples from the Greenland ice sheet, University of Washington atmospheric scientists found clear evidence of the U.S. Clean Air Act. They also discovered a link between air acidity and how nitrogen is preserved in […]