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There's gold in them thar PCs -- not to mention silver, copper, aluminum and other valuable recyclables. That fact, not a desire to save the planet, is now pushing the tech industry toward "greener" manufacturing and recycling practices. It could mean that there's an environmental silver lining to the mounting economic crisis: Tough times are forcing companies to resort to recycling as a means of recouping costs. These recycling measures are also good public relations in a time when consumers are increasingly eco-conscious -- and they might even be good for the planet.

A sugar molecule linked to the origin of life was discovered in a potentially habitable region of our galaxy. The molecule, called glycolaldehyde, was spotted in a large star-forming area of space around 26,000 light-years from Earth in the less-chaotic outer regions of the Milky Way. This suggests the sugar could be common across the universe, which is good news for extraterrestrial-life seekers. "This is an important discovery as it is the first time glycolaldehyde, a basic sugar, has been detected towards a star-forming region where planets that could potentially harbor life may exist," Serena Viti of University College London said in a press release.