Galaxies

Galaxy Formation





And THAT is how it is DONE!

:-)

OK. A little more info here if you must: The very early universe consisted of homogeneous gas with tiny perturbations. As the gas cooled over time, it collapsed under gravity into clumps and then galaxies. To better understand the process of galaxy cluster formation, researchers at the University of California, San Diego and colleagues from other institutions have modeled a region of the universe and simulated its collapse.