Dark Matter : Now More Mysterious Than Ever | Wired Science | Wired.com
►http://www.wired.com/wiredscience/2011/10/dark-matter-mysterious
Astronomers have one more reason to scratch their heads over the unseen material known as dark matter. Observations of two dwarf galaxies, Fornax and Sculptor, show the dark matter within them is spread out smoothly rather than heaped into a central bulge, contradicting cosmological models.