Beta Pictoris (image) National Radio Astronomy Observatory Caption This artist's concept illustrates the preferred model for explaining Atacama Large Millimeter/submillimeter Array observations of Beta Pictoris. At the outer fringes of the system, the gravitational influence of a hypothetical giant planet (bottom left) captures comets into a dense, massive swarm (right) where frequent collisions occur. Credit NASA's Goddard Space Flight Center/Francis Reddy Usage Restrictions None 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.