Light by it’s very nature always travels at the same speed, 2.99 x 108 meters per second: the aptly named “speed of light”. Not only is it possible to store information like this image, but quantum information can be stored as well. The difference between regular information and quantum information is a little hard to communicate (the exact definition of “information” is already plenty technical before lumping on quantum information). Quantum information is the backbone behind things like entanglement, “action at a distance”, and quantum computation. “Stopping light” is nothing new, but finding a way to store quantum information is a big deal.