The working hypothesis for the composition of the universe includes a staggering approximately 28 percent of a new form of matter called “dark matter,” not accounted for by the standard model of particle physics. Our understanding of the formation of structure in the universe hinges on the dark matter being a new particle that is slowing moving, known as “cold dark matter”; and the framework for studying how stars, galaxies, and clusters formed and evolved is based on the cold dark matter hypothesis. A leading particle candidate for the dark matter is WIMP (weakly interacting massive particle, mass between 10 and 1,000 times that of the proton). WIMP is strongly motivated by supersymmetry and detectable also as a product of the highest energy proton-proton collisions at the Large Hadron Collider (LHC). With the largest LHC datasets, the increased sensitivity of direct dark matter detection experiments, and new “telescopes” -- such as Fermi/G LAST, AMS, IceCube, and PAMELA, which can detect WIMP annihilation products -- the next decade is set to be the time of truth for the WIMP hypothesis. This is a timely symposium that will encourage astronomers and physicists, observers, experimenters, theorists, and phenomenologists to discuss the current big crossroad of particle physics and cosmology.