Astronomers have discovered that nearby satellite galaxies, the Large and Small Magellanic Clouds, are interacting with local dark matter to warp the disk of the Milky Way. It was originally believed that the Magellanic Clouds had too little mass to affect the shape of the Milky Way. Researchers from UC Berkeley have created a simulation that includes data about the Milky Way's dark matter. As the Magellanic clouds orbit our galaxy, they introduce a warp to our galactic disk that matches observations.