Research Guides (IMAGE) NASA/Johnson Space Center Caption The Researchers Guide Series can help scientists realize their potential for microgravity research aboard the International Space Station. The first part of the series is already available online. 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.