Lighting the way, with UV technology

During the day, MEGHAN BARTLETT at The Arlington Catholic Herald reports, uniformed students studying at their socially distanced desks fill the classrooms at St. Ambrose School in Annandale. But at night, the school looks more like a sci-fi scene as something resembling an extraterrestrial lifeform moves through the empty building, radiating an eerie blue light that can be seen through the closed windows of the deserted classrooms. But far from being an alien threat, this mysterious presence is keeping the school sanitized. The spectral lighting comes from a mobile unit that emits ultraviolet — c-spectrum light, a powerful energy that…