jsc2022e083572 (10/20/20220 --- A preflight image of a beating Engineered Heart Tissue (EHT) for the Engineered Heart Tissues-2 investigation. The tissue is fabricated between two posts, one flexible and one rigid. In the flexible post, you can see a square magnet. This magnet enables researchers to measure tissue function using an underlying magnetic sensor, giving real time tissue function data. Image courtesy of Johns Hopkins University.