Jessica Meir (IMAGE) NASA/Johnson Space Center Caption NASA astronaut and Expedition 61 Flight Engineer Jessica Meir installs the Bone Densitometer in an EXPRESS (EXpedite the PRocessing of Experiments to Space Station) rack located inside the Japanese Kibo laboratory module. The Bone Densitometer enables the imaging of rodent bones for the Rodent Research-19 experiment investigating two proteins that may prevent muscle and bone loss in space. 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.