The miniature only has one logical place to end, and that’s at the atomic level. Future applications of this discovery could allow people to store 1,000 times more information in the same amount of space. As an example, a system using the tiny magnets could potentially hold the entire iTunes music library – that’s 35 million songs – on a drive the size of a credit card. The team used IBM’s Nobel Prize-winning scanning tunneling microscope (STM) to create and monitor the magnets using holmium atoms. Holmium’s electrons and their close proximity to its core give each atom more stability. than is typical. Another recent breakthrough in storage technology could potentially allow us to keep digital information in strands of DNA. It will be however years before such devices will be ready to use.