Eris J. Guedes and P. Madau via ucsb
It took nearly a year of High-powered number crunching on various supercomputers, but researchers from UC Santa Cruz and the Institute for Theoretical Physics in Zurich have finally produced a computer simulation of a galaxy that looks much like our own. That may not sound so huge on its face, but it actually is the first high-resolution simulation of its kind that has turned out a galaxy similar to the Milky Way, and it has rescued the prevailing “cold Dark Matter” cosmological model of how our disc galaxy formed from a good deal of doubt.
That doubt arose from the fact that when previous, lower-resolution models were run based on that cosmological model, a Huge central bulge emerged in the galaxy--a bulge that is absent from all but the center of the Milky Way (another way of saying that: there was more bulge and less disc, whereas the Milky way is more DISC, less Bulge). …