Surface of a Sphere (IMAGE) American Institute of Physics Caption While the surface of a sphere appears smooth, it is really covered with peaks and valleys. Credit Malate/AIP Usage Restrictions This image may be used only with appropriate credit. 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.