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Student deaths, mental health issues, stress and overwork, racial and ethnic tensions: These are just some of the challenges faced by Maria Klawe at Harvey Mudd College.

Sure, their beautiful, multilayered complexity has moved poets to weep. But the real answer is more practical: A bulb's gotta keep the baddies away. We get the lowdown from a chemist.

Increasingly, advocates for patients are in the room when big medical studies are designed. They demand answers to big questions: "Will the results of this study actually help anybody?"

One Sunday morning several years ago Dave Huhn got a call. He’s usually off work that day, but it was the height of irrigation season and decided to answer. The woman on the other end was frantic, screaming as she watched her 82-year-old husband from the window.

Carl DeMaio stood outside the San Diego County Registrar of Voters Office in April, surrounded by television cameras and boxes filled with ballot petitions. He had spent more than six months preparing for this moment.

The White House will pull nominee Kathleen Hartnett White to lead the Council on Environmental Quality. White has drawn criticism for her comments on climate change.

Scientists have identified the brain cells that detect pitch changes in speech, allowing us to understand whether someone is asking a question or making a statement.

Science has failed yet again to come up with hormonal birth control for men. The most recent study was stopped because the men weren't willing to put up with side effects like mood swings and acne.

Henrietta Swan Leavitt is hardly a household name. But it was her work on measuring stellar distances that helped famed astronomer Edwin Hubble determine that certain clouds of gas and dust were actually galaxies far beyond the Milky Way.

California's 76th State Assembly seat in North County is the only open assembly seat in San Diego County this year.