Biological engineers at a Department of Energy lab "are experimenting with encrypted DNA storage for archival applications." Slashdot reader ancientribe shares an article from Dark Reading: Using this method, the researchers could theoretically store 2.2 petabytes of information in one gram of DNA. That's 200 times the printed material at the Library of Congress... Instead of needing a 15,000 square-foot building to store 35,000 boxes of inactive records and archival documents, Sandia National Laboratories can potentially store information on much less paper, in powder form, in test tubes or petri dishes, or even as a bacterial cell... "Hard drives fail and very often the data can't be recovered," explains Bachand. "With DNA, it's possible to recover strands that are 10,000 to 20,000 years old... even if someone sneezes and the powder is lost, it's possible to recover all the information by just recovering one DNA molecule."