On Point With Alex Pierson

Despite decades of research, scientists are still just scratching the surface in the journey to understand what "dark matter" really is. It might be important since eighty-five percent of the universe is made up of the mystery substance. Doctor Leah Broussard is a physicist with Oak Ridge National Laboratory in Tennessee and she tells Alex about the experiment she is about to carry out. Learn more about your ad choices. Visit megaphone.fm/adchoices