NASA launched a new space probe on Saturday (October 16) morning in a special 12-year mission designed to visit more asteroids than ever before.
It focuses on the Trojan asteroids, which are two large clumps of space rocks orbiting the sun. One floats ahead of Jupiter and the other behind it.
Scientists believe the rocks are leftovers from the formation of our solar system.
The probe is called "Lucy" and NASA hopes it will help us learn more about our solar system's history.
The asteroids are also rich in carbon compounds, and may provide insights into organic materials and life on Earth.