NASA’s Lucy mission spots Trojan asteroid around Jupiter with its own moon

NASA’s Lucy mission has discovered that Polymele, one of the Trojan asteroids around Jupiter, has its own moon. The satellite, which is reported to be roughly 200 km away from Polymele, is 5 km in diameter. The asteroid itself is reportedly 27 km in diameter. The moon has, however, not been named as astronomers are yet to define its characteristics.