What’s faster than light? Darkness

April 30, 20262 min read Add Us On GoogleAdd SciAmA recent experiment revealed that individual dark points on a light wave can move faster than the wave itselfBy Adam Kovac edited by Claire Cameron MirageC/Getty ImagesJoin Our Community of Science Lovers!The speed of light in a vacuum has been known as both a universal constant and a hard speed limit for all matter in the universe ever since Albert Einstein published his special theory of relativity in 1905. Rules, however, are made to be broken. And an international team of physicists appears to have found just such a loophole: the only thing that goes faster than light, it turns out, is darkness.More specifically, individual dark spots known as optical vortices, or phase singularities, do so. As a light wave travels through space, it oscillates and twists—at the center of that twist, the peaks and troughs of the light wave cancel each other out, creating dark spots that—under certain conditions—outrun the light wave itself. The research was conducted by Technion–Israel Institute of Technology physicist Ido Kaminer and his colleagues.“Our discovery reveals universal laws of nature shared by all types of waves, from sound waves and fluid flows to complex systems such