The website, Galaxy Zoo Mergers, features a new game that bears (it must be said) only a mild resemblance a Vegas slot machine, with a real galactic merger image in the middle and eight randomly selected images of simulated mergers in the slots around it. Players pick out the best matches and can even manipulate the number of stars they see or an image's orientation to make a better match. Says researcher Chris Lintott:
Studying these mergers could explain why the universe has the mix of galaxy types – from those with wound-up spiral arms to compact balls of stars – that it does. And it turns out that the human eye is much better than a computer at matching up images of real mergers with randomly-selected images of simulated mergers [SPACE.com]
Astronomers want you... to help them match pictures of cosmic collisions, which are known as "galactic mergers."
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