asteroids — two vast clusters of space rocks that surround the planet. scientists believe they are made up of matter that formed the solar system's outer planets. duncan kennedy explains three, two, one, zero. the start of a 4 billion—milejourney. lift off, atlas v takes flight. the atlas v rocket is carrying a craft called lucy, that aims to go into orbit around jupiter and study a group of asteroids called trojans, some of which are the size of a city. so what are the trojan asteroids? there asteroids which orbit withjupiter around the sun that ultimately hold the clues to the formation of our solar system... lucy's giant solar panels would only generate enough electricity to power a few light bulbs on earth but around jupiter, it's enough to reach the trojan asteroids and ask questions like what they made of and where do come from? by going to visit a large number, eight asteroids in total, over the mission lifetime, we'll really better understand