Crystals, bacterial colonies, flame fronts: the growth of surfaces was first described in the 1980s by the ...

According to the Department of Defense (DOD), the Terminal High Altitude Area Defense (THAAD) system (Figure 1) is a key element of U.S. ballistic missile defense (BMD). THAAD employs interceptor ...

San Francisco’s iconic commuter trains may be heading for the end of the line. The Bay Area Rapid Transit system — known to millions simply as BART — is staring down a massive financial crisis as ...

Astronomers have reported observations of a rare star system consisting of one star orbiting a system of three more tightly bound stars. This quadruple star system is described in a new study, ...

Homeland Security aims to combine its face and fingerprint systems into one big biometric platform—after dismantling centralized privacy reviews and key limits on face recognition. The agency is ...

Anyone can view a sampling of recent comments, but you must be a Times subscriber to contribute. Log in above or subscribe here. Conversations are opinions of our readers and are subject to the ...

A potent cold front triggered over 500 lightning strikes on Tuesday, bringing intense rain, small hail, and localized flooding to San Francisco, Alameda, and Contra Costa counties. Driven by a frigid ...

MONACA, Pa. — The Pennsylvania Attorney General’s Office invited the public on Monday to express their opinions on the proposed merger of Heritage Valley Health System and Allegheny Health Network.

Add Yahoo as a preferred source to see more of our stories on Google. The Pennsylvania Attorney General’s Office invited the public on Monday to express their opinions on the proposed merger of ...

Whether at home or at the office, there are few appliances as frustrating as a printer. They frequently get jammed, disconnect from the Wi-Fi, and it seems like you're constantly throwing away and ...

Rain arriving Saturday night will become widespread across the Bay Area through much of the week as a series of storm systems arrive, the National Weather Service said. The rain will be accompanied by ...