About the cover
In the cause of cramming more and more data onto optical storage devices, materials scientists have sought to add extra dimensions to recording media, literally. Now Zijlstra et al. have developed a five-dimensional optical recording technique with the potential to increase storage capacities by several orders of magnitude — a theoretical 1.6 terabytes capacity for a DVD-sized disk. [Cover image: Peter Zijlstra & James W. M. Chon]
