NASA (IMAGE) Johns Hopkins Medicine Caption Andrew Feinberg and Lindsay Rizzardi test procedures for purifying blood samples on NASA's microgravity plane called the "Vomit Comet." Credit Johns Hopkins Medicine 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.