Astronomers say it would take them too long to spotlight the star clusters on their own, and that pattern-recognition software isn't good at picking out star clusters. They're turning to Internet "crowdsourcing" to speed things up.
"Many people say, 'I don't know what star clusters are going to look like,'" Seth said. "But once you get started, you start seeing a pattern of clusters among individual stars."
Here are pics of background galaxies in the andromeda system.