Evidence of life could be preserved in blades of salt crystals on the Red Planet.
The "Big One" may be many smaller ones.
Comparing Native American and Siberian languages suggests a 10,000-year stopover.
Sediment records suggest that East Coast suffered higher winds many times.
Detritus from the Gold Rush is heading toward America’s food basket.
A tale of an Indonesian volcano, a monk, and the mass graves of London.
The arms got longer, the legs got shorter, and they were flying.