Fruit Fly Cassette (IMAGE) NASA/Johnson Space Center Caption Each fly cassette -- a food-containing habitat for fruit flies -- fits inside of a camera and lighting unit that records high-definition video and provides a day/night cycle for the flies. Credit NASA / Dominic Hart 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.