First images made of hydrogen burning in working internal combustion engine

Argonne engineers are the first to capture hydrogen combustion images inside an engine operating at real-world speeds. The red and yellow images show the more intense temperatures.
Images of hydrogen combustion have been captured for the first time in an internal combustion engine operating at real-world speeds and loads by engineers at the U.S. Department of Energy's Argonne National Laboratory. This window into the inner workings of a hydrogen-powered engine is helping to optimize the engines for street use some day.