RNA research EteRNA gets its game on

Bejeweled and Angry Birds are fun, but the computer games represent little more than a pleasant way to...

How Sierra Nevada rose from the jungle

How Sierra Nevada rose from the jungle

Fifty million years ago, powerful forces deep underground launched a wave of mountain building that...



Eodromaeus - new species of dinosaur discovered

Back at the dawn of the dinosaur era, a quick-moving predator set the stage for the famous and fearsome giants that followed in its...

Chronicle 1.14.11 4:00 AM

Bizarre worms that eat whale skeletons discovered

A dozen species of worms that devour the skeletons of whales and two species of snails related to the gastropods that munched dinosaur...

Chronicle 1.13.11 4:00 AM

Mike Brown: Astronomer tells 'How I Killed Pluto'

If the title "How I Killed Pluto" makes you cringe, hear author Mike Brown out. The Pluto in question isn't Mickey Mouse's loyal...

Chronicle 1.13.11 4:00 AM

Kepler spacecraft finds hot, distant planet

The spacecraft Kepler, searching for planets far beyond our solar system, has found a rocky one that's not much larger than Earth, but...

Chronicle 1.11.11 4:00 AM

Astronaut Scott Kelly's Tucson tribute from space

- Space station commander Scott Kelly led NASA in a moment of silence Monday as he struggled with the senseless shooting of his...

Chronicle 1.11.11 4:00 AM

4.1 quake near San Jose rattles Bay Area

A moderate earthquake rattled the Bay Area this afternoon. The 4.1-magnitude quake struck at 4:10 p.m. with an epicenter 13 miles...

Chronicle 1.7.11 4:29 PM

Quake rattles Bay Area

A 4.4 magnitude earthquake hit the Bay Area at about 4:10 p.m. today, according to the U.S. Geological Survey. The quake was centered...

Chronicle 1.7.11 4:22 PM