Model of a Binary Asteroid (IMAGE) University of Maryland Caption In this image, Walsh, Richardson and Michel depict the spin-up and binary formation from two views, on the left is an overhead view. The right pane of the image looks at the equator of the primary body, which is also the plane in which the asteroid's satellite is formed. Credit Walsh, Richardson & Michel 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.