UT: Dark Matter is Denser in the Solar System

Dark matter was theorized to exist relatively recently, and we've come a long way in understanding what makes up a whopping 23% of our Universe. Our own galaxy is surrounded by a halo of dark matter that adds to its mass. A recent paper on the dark matter closer to home – right here in our own Solar System – reveals that it is denser and more massive than in the galactic halo. More...