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New HIV strain originated in gorillas

Chimps are not the only animals that can harbor and introduce HIV into human populations, according to a new report. A 62-year-old woman, who recently arrived in Paris after living in Cameroon, is thought to be the first human to carry a strain of HIV originating in a gorilla...

August 4, 2009 — Lynne Peeples

Power-hungry supercomputers going green

Speed and power have long been the most important criteria when judging a supercomputer's worth as a number-crunching lab workhorse, but energy efficiency is fast catching up.

August 3, 2009 — Larry Greenemeier

Tool kit dropped from space station is orbital junk no more

A tool bag lost by a spacewalking astronaut in November appears to have met its end after more than eight months in orbit. The chief scientist at NASA's Orbital Debris Program Office says the tool kit should have reentered the atmosphere this morning...

August 3, 2009 — John Matson

Black kids aren't getting enough vitamin D, study says

Too much television and too little milk means that black children are not getting enough of vitamin D, a new study says. Known as the “sunshine vitamin” because it can also be obtained through sun exposure, Vitamin D can stave off rickets, improve bone health, and possibly prevent colds, heart disease and diabetes...

August 3, 2009 — Brendan Borrell

Drilling deep into an ocean fault

For the first time, researchers have been able to drill deep (more than 1,600 meters) into an ocean fault zone.

The expedition team, onboard the Japanese research ship Chikyu, is searching for answers in the depths of the Nankai Trough about why the previously active fault has locked up in the past several decades—and what type of activity might be likely in the near future...

July 31, 2009 — Katherine Harmon

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