Archive: 3/03/2009

Coming of age on the Internet

In the mid-90s, the Internet seemed like a dark place. Indeed, scientific studies from that time were documenting some real risks for teenagers, including fewer close friendships and more tenuous connections with family. ...

dateMar 03, 2009 in Psychology & Psychiatry
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Saturn has small moon hidden in ring

(PhysOrg.com) -- NASA's Cassini spacecraft has found within Saturn's G ring an embedded moonlet that appears as a faint, moving pinprick of light. Scientists believe it is a main source of the G ring and its single ring arc.

dateMar 03, 2009 in Space Exploration
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New protein identified in bacterial arsenal

(PhysOrg.com) -- Nearly a billion years ago, bacteria evolved an insidious means of infecting their hosts — a syringe-like mechanism able to inject cells with stealthy hijacker molecules. These molecules, called virulence ...

dateMar 03, 2009 in Biochemistry
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