Looking for the Invisible: Search for the Dark Matter There is perhaps no current problem of greater importance to astrophysics and cosmology than that of “dark matter”. The search for dark matter has dominated cosmology for half of the century. But one might ask, what is “dark matter”? What is it consisting of? And, how do we know that its there? As much as 90 percent of the matter in the universe is invisible. Detecting this …showed first 75 words of 1567 total…

…showed last 75 words of 1567 total…effect it exerts on visible matter in the universe. As our astrophysical experiments become more sophisticated, and our understanding of large gravitational systems (galaxies and clusters of galaxies) grows, we will answer more of the questions that have faced us years. New questions about the nature and origin of dark matter are continually being put forward, ensuring that this field will be exciting, dynamic and at the forefront of astrophysical research for years to come.