"Masters of Time "chronicles the sudden unraveling of modern cosmology from its heyday in the early 1980s, when the ultimate secret of the origin of the universe seemed all but in hand, to the confused scientific picture of the 1990s. By following each major theory from its origins to the point at which it is overtaken by contradictory or nonexistent evidence, Boslough offers the clearest explanation ever offered of what we know and still do not know about the origin and structure of the universe.