Strontium-Free and Halogen-Free Red Flare (IMAGE) U.S. Army Research Laboratory Caption US and German researchers teamed to develop an environmentally-friendly red light flare. The formula is a lithium-based red-light-emitting pyrotechnic composition of high purity and color quality, and avoids a list of potentially toxic elements, namely strontium and chlorinated organic materials. Here, they captured a mid-burn image of the strontium- and halogen-free red flare burning. Credit Dr. Jesse J. Sabatini, ARL Usage Restrictions None License Licensed 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.