Where's the app for an earthquake warning?

SAN JOSE, Calif. -- Among the many things the Bay Area learned from the recent shaker near Napa is that the University of California, Berkeley's earthquake warning system does indeed work for the handful of people who receive its messages, but ...

NASA's MAVEN mission is about to reach Mars

In just four days, after a 10-month journey across the inner solar system, NASA's MAVEN spacecraft will finally reach the Red Planet. The orbiter could provide the elusive answer to a simple question: If Mars once had enough atmosphere to allow ...