Professor says volcanic eruptions in Costa Rica 'inevitable'

It might be 500,000 years or five years, but the Central Valley of Costa Rica will definitely experience major volcanic activity again, according to Phillip B. Gans, professor of geology at the University of California, Santa Barbara. He presented a study of volcanic rocks of Costa Rica in his recent talk at the annual meeting of the Geological Society of America.

Mars May Be Much Older — or Younger — than Thought

Research by a University at Buffalo planetary geologist suggests that generally accepted estimates about the geologic age of surfaces on Mars — which influence theories about its history and whether or not it once sustained life — could be way off. Funded by the National Aeronautics and Space Administration, the research eventually could overturn principles about the relative ages of different areas on the Red Planet that have not been questioned for nearly 20 years.