NASA Image (IMAGE) De Gruyter Caption NASA astronaut and Expedition 23 flight engineer, T.J. Creamer harvests a tissue sample from white spruce seedlings grown in the 2010 Canadian Space Agency 2 (APEX-CSA2) Advanced Plant Experiment in the Destiny laboratory of the International Space Station. 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.