Engineered Heart Tissues (IMAGE) NASA/Johnson Space Center Caption NASA astronaut Jessica Meir works on a media change for the Engineered Heart Tissues investigation inside the Life Sciences Glovebox. Credit NASA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.