3-D Crystals (IMAGE) NASA/Johnson Space Center Caption Researchers are manipulating temperature to control the assembly and interactions of the particles. Suspended in a fluid medium, these particles are designed to bind to one another in specific ways to form 3-D crystals when exposed to high or low temperatures. Credit NASA/iGoal Animation 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.