Lab-on-a-chip (IMAGE) National Space Biomedical Research Institute Caption The lab-on-a-chip is a miniaturized, portable version of a blood-count machine. On long missions, astronauts will need the ability to analyze blood samples in real-time to diagnose infection, allergies, anemia or deficiencies in the immune system. Credit Photo courtesy of Y. Tai, California Institute of Technology 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.