How did our solar system form? Scientists have a few theories...but there’s still so much we don’t know. The Lucy mission was designed to help answer these big questions. By visiting Jupiter’s Trojan asteroids, ancient space rocks that have been orbiting the Sun for billions of years, Lucy gives us a front-row seat to the earliest days of our planetary system. Studying these asteroids could reveal how planets formed, how they migrated, and why our solar system looks the way it does today. Stream