Galactic Pile-Up May Point to Mysterious New Dark Force in the Universe http://ifttt.com/images/no_image_card.png

By closely mapping the mass of an enormous galactic collision, astronomers may have uncovered a type of force that only affects dark matter.



via Wired Top Stories http://feeds.wired.com/~r/wired/index/~3/MC3GCA40HsA/