Experimental setup (IMAGE) Optica Caption Researchers have demonstrated a prototype all-light communication network that can achieve seamless connectivity across air, land and underwater environments, even when communication nodes are on moving vehicles. The laboratory where they tested the vehicle-mounted system is pictured. Credit Yongwin Wang, Nanjing University of Posts and Telecommunications Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.