Toward Better Space Health (IMAGE) Cactus Communications Caption Astronauts in long-term missions, such as in the International Space Station or in future deep space expeditions, have to endure the many adverse side effects of microgravity. Credit NASA-Imagery from Pixabay Usage Restrictions No restrictions. License Public Domain 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.