Using data from the W. M. Keck Observatory's OSIRIS spectrometer and maps from NASA's Galileo probe, researchers have mapped what may be salt deposits from the ocean below the ice onto the Jovian moon's surface.
Caltech geochemist Clair Patterson (1922–1995) helped galvanize the environmental movement 50 years ago when he announced that highly toxic lead could be found essentially everywhere on Earth, including in our own bodies—and that very little of it was due to natural causes.
A team of scientists led by Caltech has pieced together the first complete account of what physically happened during the Gorkha earthquake—a picture that explains how the large temblor left the majority of low-story buildings in Kathmandu unscathed.
Taking advantage of airborne radar tools, Caltech researchers provide two possible explanations for a series of unusual earthquakes seen in Iceland during a period of volcanic activity that started in August last year.
A team of researchers has discovered an ancient, deep canyon buried along the Yarlung Tsangpo River in south Tibet. The geologists say that the ancient canyon—thousands of feet deep in places—effectively rules out a popular model used to explain how the massive and picturesque gorges of the Himalayas became so steep, so fast.