Comets and asteroids
Chapter 1
Leftovers of cosmic creation
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Chapter 2
Cosmic visitors and Earthly impacts
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Chapter 3
Human missions to touch the stars
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Chapter 4
The future of space rocks
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YOUR GOAL
Master of Comets and asteroids
Ch 1 · Leftovers of cosmic creation
teacher Floating in the dark, floating in the dark, Bennu's got the dust that gave Earth its start.
Fun Fact
Comet tails: A comet's tail doesn't trail behind its movement, but always points directly away from the Sun due to solar wind.
Glossary
comet (noun)
A celestial object consisting of a nucleus of ice and dust that develops a glowing tail when near the sun. In 2014, the Rosetta spacecraft successfully orbited Comet 67P to analyze its ancient, icy material.
A celestial object consisting of a nucleus of ice and dust that develops a glowing tail when near the sun. In 2014, the Rosetta spacecraft successfully orbited Comet 67P to analyze its ancient, icy material.
Quiz
What is the largest object in the main asteroid belt, classified as a dwarf planet?