Every advance in memory storage devices presents a new marvel of just how much memory can be squeezed into small spaces. Considering the potential of nanolasers under development, things are about to get a lot smaller. Scientists are exploring lasers so tiny that they point to a future where a 10-terabit hard drive is only one-inch square. That is 50 times the data density of today?s magnetic storage technology, a technology that has nearly reached its limit for continued miniaturization.