Thursday September 2, 2010 Updated 8:49 AM PDT
UPDATE : The fourth Spare the Air Day of the season was called for Thursday as hot, stagnant air...
Yale University had originally planned to purchase two DNA sequencing machines from San Diego-based...

An estimated 48,000 gallons of raw sewage spilled into the Redwood Shores area of Redwood City over two days last week, nearly 10...
Chronicle 8.31.10 1:33 PM
A light earthquake with a 3.2 magnitude was recorded near Concord Tuesday evening, the U.S. Geological Service said. The quake...
Chronicle 8.31.10 7:52 PM
We've all seen these people: the boss who blows her top when a meeting runs five minutes late, the man in the coffee shop who screams...
Chronicle 8.31.10 4:00 AM
Tens of thousands of people packed emergency shelters Monday after a long-dormant volcano in western Indonesia spewed clouds of hot...
Chronicle 8.31.10 4:00 AM
Nothing quite like it, a dinosaur with two sickle-like claws on each foot, was known to live in the final period of the age of great...
Chronicle 8.31.10 4:00 AM
NASA's Kepler spacecraft, whose powerful telescope is scanning the stars in the Milky Way, has discovered two giant planets with...
Chronicle 8.27.10 4:00 AM
Most reports about seasonal influenza cite an average of about 36,000 deaths in a typical season, but that number is too high and...
Chronicle 8.27.10 4:00 AM
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