Asteroids and Comets | Science Trek | PBS LearningMedia
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Asteroids and Comets | Science Trek | PBS LearningMedia
Asteroids are small, rocky objects left over from the formation of our solar system. Comets are leftovers too, made of dust, rock and ice. These small worlds can tell us what the early solar system was like. On this Science Trek, travel to the asteroid Bennu, learn about Lucy and the Trojans and much more!
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