Made up of countless individual ice particles Extremely thin with many gaps How

Made up of countless individual ice particles

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What are Saturn’s rings like? Made up of countless individual ice particles Extremely thin with many gaps How do other jovian ring systems compare to Saturn’s? Much fainter ring systems with smaller, darker, less numerous particles Why do the jovian planets have rings? Ring particles are probably debris from moons What are asteroids like? Rocky leftovers from the era of planet formation Generally irregular in shape Some are “rubble piles” The majority are found in the asteroid belt, between the orbits of Mars and Jupiter What are comets like? Comets are like dirty snowballs Most are far from Sun and do not have tails Tails grow when comet nears Sun and the nucleus heats up Comets come from Kuiper Belt and Oort cloud What are meteoroids, meteors, & meteorites? Meteoroid - small debris in space Meteor - bright streak in the air cause by fall - ing debris Meteorite - space rock on the ground Most meteors are comet debris, but meteorites come from asteroid debris Did a meteorite impact kill the dinosaurs? An iridium-rich sediment layer and an impact crater on the Mexican coast show that a large impact occurred at the time the dinosaurs died out, 65 million years ago
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