03/12/2008

Cellular senescence a double-edged sword

Scientists have identified a molecular cause behind the ravages of old age and in doing so have also shown how a natural process for fighting cancer in younger persons can actually promote cancer in older individuals. Cellular ...

Golf course: Playing fields, wildlife sanctuaries or both

"FORE"...Though they may not help improve a person's golf game, stream salamanders might change the way golfers think about the local country club in the near future, following a new University of Missouri study.

ESA satellites flying in formation

(PhysOrg.com) -- Based on the outstanding success of the first tandem mission between ERS-2 and Envisat last year, ESA has paired the two satellites together again to help improve our understanding of the planet.

Potential for large earthquake off coast of Sumatra remains large

The subduction zone that brought us the 2004 Sumatra-Andaman earthquake and tsunami is ripe for yet another large event, despite a sequence of quakes that occurred in the Mentawai Islands area in 2007, according to a group ...

Venus comes to life at wavelengths invisible to human eyes

(PhysOrg.com) -- A pale yellow-green dot to the human eye, Earth's twin planet comes to life in the ultraviolet and the infrared. New images taken by instruments on board ESA's Venus Express provide insight into the turbulent ...

How to destroy an asteroid

In the hit 1998 movie Armageddon, Bruce Willis and Ben Affleck blew up an asteroid to save the world. While the film was science fiction, the chances of an asteroid hitting the Earth one day are very real ― and blowing ...

New 'control knobs' for stem cells identified

Natural changes in voltage that occur across the membrane of adult human stem cells are a powerful controlling factor in the process by which these stem cells differentiate, according to research published by Tufts University ...

3-D laser scanning: A new soil quality measurement

Soil researchers pay close attention to bulk density, as it is one of the most common soil measurements and it is often used as a measure of soil quality. A soil's bulk density can be indicative of the ease of root penetration, ...

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