San Francisco lays out flu vaccination plans

San Francisco will receive about 100,000 doses of swine flu vaccine in mid-October, with 40,000 more...

Budget woes may keep moon rocket earthbound

Budget woes may keep moon rocket earthbound

NASA will test the powerful first stage of its new Ares moon rocket today, a milestone in a program that...



Brain changes may have led to Stone Age tools

Once upon a time in the long evolution of Homo sapiens, a band of our African ancestors learned to use fire for more than cooking meat...

Chronicle 8.26.09 4:00 AM

Americans urged to cut way back on sugar

A spoonful of sugar? Americans are swallowing 22 teaspoons of sugar each day, and it's time to cut way back, the American Heart...

Chronicle 8.25.09 4:00 AM

Casa Olga Intermediate Care Facility to close

Casa Olga Intermediate Care Facility in Palo Alto, a 35-year-old center that provides care to psychiatric patients, began the...

Chronicle 8.24.09 4:00 AM

Stanford scanner penetrates mummy's secrets

A minor priest from ancient Egypt gave his body to a high-tech scanner at Stanford Medical Center on Thursday. The priest is a mummy...

Chronicle 8.20.09 7:34 PM

Harass a worm, see it cast off green body parts

Thousands of feet beneath the sea live worms that can cast off green glowing body parts, a move scientists think may be a defensive...

Chronicle 8.21.09 4:00 AM

The blue Martian watermelon

I do so love the Martian watermelon. Perhaps you read David Perlman's piece about it in This Very Newspaper. Allow me to quote the...

Chronicle 8.19.09 4:00 AM

Crews cap leak from sunken tugboat

Cleanup workers have contained 200 gallons of an "oily, watery mixture" that seeped into the bay after a decommissioned Navy tugboat...

Chronicle 8.18.09 4:24 PM