Yeast Growth Study (IMAGE) NASA/Johnson Space Center Caption Studying yeast grown in space could help us learn about the changes human cells may experience during long-duration spaceflight. Gaining better knowledge of genetic alterations by studying yeast also may help in understanding how these changes could manifest in human disease on Earth. Credit University of Toronto Usage Restrictions with credit to The University of Toronto 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.