How do you measure a cloud? Tim Bencic does it with lasers. The NASA Glenn engineer invented a tomography system for our Propulsion Systems Lab to help understand the dangers of ice crystal icing on airplanes. Bencic’s system, affectionally called “Tim-ography” is like a CAT Scan. The laser light within its circular geometry bounces off the surface of ice particles in the cloud and fiber optic detectors map out its properties. This tool is helping NASA’s researchers make aircraft safer in challenging weather conditions.