The Extinction Before the Dinosaurs
March 26, 2013 | National Science Foundation
"More than 200 million years ago, a massive extinction decimated 76 percent of marine and terrestrial species, marking the end...
Permian Extinction Caused by Acid Rain?
November 25, 2013 | Massachusetts Institute of Technology
"Rain as acidic as undiluted lemon juice may have played a part in killing off plants and organisms around the...
May 1 to May 15 Most Popular
May 16, 2013 | Geology.com
Why Natural Gas Cars are Selling Slowly
What is Sunstone?
Natural Gas Could Kill Fuel Diversity
Large Hurricane on Saturn
Who Becomes Dominant After...
Lowest Mass Exoplanet
August 7, 2013 | NASA
"An international team of astronomers has imaged a giant planet around the bright star GJ 504. Several times the mass...