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Monster galaxy pileup sighted
08-06-2007 · EurekAlert!Four galaxies are slamming into each other and kicking up billions of stars in one of the largest cosmic smash-ups ever observed.The clashing galaxies, spotted by NASA's Spitzer Space Telescope and the WIYN Telescope, will eventually merge into a single, behemoth galaxy up to 10 times as massive as our own Milky Way. This rare sighting provides an unprecedented look at how the most massive galaxies in the universe form.
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