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A Mice story

A computer simulation demonstrates how "The Mice" were created and what will happen to the two galaxies in the future.
In April 2002, the brand-new Advanced Camera for Surveys (ACS), just installed on the Hubble Space Telescope, took aim at a pair of colliding spiral galaxies collectively known as NGC 4676. Long tails of stars and gas stretch from both galaxies, prompting astronomers to nickname the pair "The Mice." The new ACS image of "The Mice" showed more detail and more stars in the two galaxies than had ever been seen before. To learn more about how "The Mice" came to be, astronomers Josh Barnes of the Uni...

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