Conceptual Diagram of This Research (IMAGE) National Institutes of Natural Sciences Caption Researchers calculated the typical paths of long-orbit comets (blue) perturbed by a passing gas-giant-sized object (white) and objects of interstellar origin (red). Credit NAOJ 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.