Heart of DarknessHeart of Darkness describes the incredible saga of humankind's quest to unravel the deepest secrets of the universe. Over the past thirty years, scientists have learned that two little understood componentsdark matter and dark energycomprise most of the known cosmos, explain the growth of all cosmic structure, and hold the key to the universe's fate. The story of how evidence for the so called Lambda Cold Dark Matter model of cosmology has been