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I'm unemployed amoxicillin buy online uk Between Feb. 2009 and April 2010, more than 83,000 Galaxy Zoo 2 volunteers from around the world looked at images online that were gathered from the Sloan Digital Sky Survey. The participants answered questions about the galaxy, including whether it had spirals, the number of spiral arms present, or if it had galactic bars, which are long extended features that represent a concentration of stars. Each image was then classified an average of 40 to 45 times to ensure accuracy.

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