Gioia Massa, Purdue University (IMAGE) Purdue University Caption Gioia Massa, a former Purdue postdoctoral researcher, measures the length of a sweet potato plant. In the background, other plants are climbing cages that minimize their area requirements, making them a possible crop that could be grown in space. Credit Photo submitted by Mitchell Laboratory 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.