Abstract
As we gaze into the heavens to understand more about our universe, we find evidence for something vast yet invisible. Though shrouded in mystery, dark matter is more than myth. Look around at the water, rocks, plants, animals, and other humans. Grab a telescope and take a peek at the planets, galaxies, and other stellar wonders. Now squint through a microscope at the infinitesimal world of bacteria, fungi, and other organisms. You could look for a lifetime and still not see everything there is to see. But incredibly, astronomers believe that about 90% of matter in the universe is invisible. They call it dark matter. You've probably heard of dark matter in the news or in science fiction. Yet despite our familiarity with the term, dark matter remains the greatest unsolved problem in physics, because its identity remains unknown.