Rodent Research Hardware System (IMAGE) NASA/Johnson Space Center Caption The Rodent Research Hardware System includes three modules: (left) habitat, (center) transporter, and (right) animal access unit. Credit NASA/Dominic Hart 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.