AMSTAR, NCAR's massive digital storage library, enables atmospheric scientists to conduct increasingly sophisticated computer studies by preserving and protecting valuable scientific data. The new system is based on the StorageTek SL8500 Modular Library from Sun Microsystems. The NCAR name for the system, AMSTAR, stands for Augmentation of the Mass Storage Tape Archive Resources. This image shows robots inside AMSTAR that respond to commands to fetch and mount tape cartridges for reading and/or writing.