Marta Hall and David Hall founded Velodyne LiDAR over a decade ago. With ever changing innovation and developments, LiDAR can be an important tool for automated driving assistance systems in cars (ADAS,) enabling autonomous vehicles and robotics, identifying danger in advanced security systems, and mapping city roadways and civic infrastructure in three dimensions. In addition, lidar can also be used for advanced ocean and forest mapping. The technology isn’t widely understood by the public, however, so in the following article, Marta Hall and David Hall take a minute to explore what it does, how it works, and how it’s being applied in both research and practical settings.