Particles from the upper atmosphere trapped in a deep pile of Antarctic snow hold clear chemical traces of global meteorological events. Anomalies found in sulfate particles coincide with several El Niño events, a new study found.

One of the most beloved professors on campus has taught gut-wrenching organic chemistry to anxious sophomores each fall for decades and still manages to earn nearly perfect scores on his teaching evaluations. VIDEO

Bruce Arnold, director of diagnostics, testing and placement program for mathematics, and Robina Shaheen, project scientist, have been recognized for their multiple efforts to encourage others to pursue careers in math and science.

A dusty spring in Asia and Africa can increase snowfall thousands of miles away in California's Sierra Nevada mountains when winds stir up tiny particles of dust, pollution, bacteria and heavy metals from the Taklimakan and Gobi deserts in Asia and the Sahara in Africa.

Astronomers have begun an ambitious new project to measure light from thousands of distant galaxies. Over the next four years, they'll survey the sky for signals from a time when the Universe was just 2 to 4 billion years old.

Microstrokes matter

Invisibility cloaks: Finally here?

Alumnus David Smith talks with the San Diego Union-Tribune about metamaterials.

Space rock mystery

Two unusual space rocks survived their fiery falls through Earth's atmosphere. One has been identified as a new class of Martian meteorite that likely originated from the Red Planet's crust.