Astronomers have discovered what makes some spiral galaxies fat and bulging while others are flat discs — and it’s all about how fast they spin. The researchers found that fast-rotating spiral galaxies are flat and thin while equally sized galaxies that rotate slowly are fatter. One of the researchers said the way galaxies are formed looks a bit similar to a carousel made of an elastic disc.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/q...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/q...