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Black hole may be feeding on asteroids
COLOGNE, Germany, May 9 (UPI) -- A German geologist said layers of sediment in the bottom of a lake in the Sahara suggest the region dried up gradually over thousands of years.
The report by Stefan Kropelin with the Institute of Prehistoric Archeology at the University of Cologne in Germany contradicts previous research suggesting the change from trees and lush grasslands to desolate desert occurred within a few centuries, The New York Times said Friday.
Kropelin's team analyzed layers of sediment in a core drilled from the bottom of Lake Yoa in northeastern Chad. He said the changing types of pollen that drifted to the bottom of the lake tell a story about the surrounding terrain.
The report was published in the journal Science.
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MOUNT PLEASANT, S.C., Feb. 13 (UPI) --
Authorities in South Carolina said they were investigating the disappearance of a woman whose fiance was found dead in the couple's home near Charleston.
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NEW YORK, Feb. 13 (UPI) --
Kate Upton was revealed as the cover model of the 2012 Sports Illustrated Swimsuit Issue during Monday's taping of "Late Show" in New York.
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PASADENA, Calif., Feb. 13 (UPI) --
A European space mission has seen previously undiscovered islands of star formation and mysterious microwave emissions in our Milky Way galaxy, astronomers say.
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