Trojan Asteroid and Lucy Spacecraft (IMAGE) Southwest Research Institute Caption This artist's concept shows one of now eight objects NASA's Lucy spacecraft will fly by during its 12-year, 4-billion-mile journey. The SwRI-led mission recently discovered that one of the Trojan asteroids orbiting in tandem with Jupiter has a small satellite. Credit NASA and Southwest Research Institute Usage Restrictions Images/videos may be used by the media and the public for educational and informational purposes only 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.