Alexander Gerst Installs EML (IMAGE) NASA/Johnson Space Center Caption European Space Agency astronaut Alexander Gerst installs the electromagnetic levitator in the Materials Science Laboratory during Expedition 40 aboard the International Space Station. Credit European Space Agency/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.