Standing in the midst of a laser grid, Senior Airman Joe Mora (left), 452nd Aerospace Medicine Squadron, March Air Reserve Base, California, places the device on a table while setting up for a paranormal investigation on base Wednesday, Aug. 13, 2014. The purpose of the laser grid is to project across an area in attempts to visually see objects that may pass through the laser beams. You can see that the beams he is blocking are not being projected onto the wall. (Courtesy photo/Linda Welz)