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October 07, 2011

CL0958+4702

The Spitzer Space Telescope has captured images of four massive galaxies slamming into each other.

The new quadruple merger was discovered serendipitously during a Spitzer survey of a distant cluster of galaxies, called CL0958+4702, located nearly five billion light-years away. The infrared telescope first spotted an unusually large fan-shaped plume of light coming out of a gathering of four blob-shaped, or elliptical, galaxies. Three of the galaxies are about the size of the Milky Way, while the fourth is three times as big.

Posted by Ghost of a flea at October 7, 2011 05:24 AM