Will I get paid for overtime? <a href="https://lekas-urology.com/stmap_4ecf0.html?alendronate.ivermectin.levitra.zetia">see sense ace lights</a>  Between February 2009 and April 2010, the 83,000 citizen scientist volunteers from around the world looked at images online collected from the Sloan Digital Sky Survey.  The volunteers answered questions about the galaxy, including whether it had spirals, the number of spiral arms present, or if it had galactic bars &#8211; long extended features that represent a concentration of stars.  Then each image was classified an average of 40-45 times, to ensure accuracy.  The researchers estimated that the volunteer efforts on Galaxy Zoo 2 constitutes approximately 30 years of full-time work by one researcher.