View Full Version : A Mega-Merger of Massive Galaxies Caught in the Act

2013-May-22, 11:40 PM
Even though the spacecraft has exhausted its supply of liquid helium coolant necessary to observe the infrared energy of the distant Universe, data collected by ESA’s Herschel space observatory are still helping unravel cosmic mysteries — such as how early elliptical galaxies grew so large so quickly, filling up with stars and then, rather suddenly, [...]

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