Expanding the search for dark matter

At a recent meeting, scientists shared ideas for searching for dark matter on the (relative) cheap. Thirty-one years ago, scientists made their first attempt to find dark matter with a particle detector in a South Dakota mine. Since then, researchers have uncovered enough clues to think dark matter makes up approximately 26.8 percent of all the matter and energy in the universe. They think it forms a sort of gravitational scaffolding for the galaxies and galaxy clusters our telescopes do reveal,...