Three and a half years after the SETI@Home project began receiving data from home computers all over the world, SETI scientists are heading back to Arecibo to take a closer look at 150 specific areas of space that the project has flagged as possible sources of extra-terrestrial life. UC Berkeley physicist Dan Werhimer thinks that there’s a 1 in 10,000 chance that one of the candidate signals will be of extra-terrestrial origin. You may think those chances are slim, but when you consider that the chances of winning the National Lottery are 1 in 14,000,000, those odds start to look quite good.