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[music throughout]

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You might be wondering,
 where is Lucy off to?

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Ah, yes! The Trojan asteroids.

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These are a population of asteroids
 in orbit around the Sun,

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about as far away as Jupiter. 

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It may seem far away to you,
 but our Lucy spacecraft

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is a capable explorer
 and ready to make the trek to her targets.

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Lucy is aiming to visit asteroids
 in both of these Trojan swarms

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on her 12 year mission. 

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The pull of gravity from the Sun balances
 the pull from Jupiter

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to keep the Trojan asteroids in these two
 groups due to the gravitational

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balancing act, these asteroids have been
 in these orbits for billions of years.

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It's still quite the challenge
 to explore these targets.

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However, our intrepid explorer
 is ready for her mission.

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Aren't you, Lucy? 

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Ah, of course. You'll be the
 first spacecraft to visit these asteroids.

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I can't help but wonder, though,
 why choose these asteroids in particular?

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I see the scientific evidence says
 the Trojan asteroids

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are leftover material
 from the formation of the planets.

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Right. These asteroids hold vital clues

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to understanding the history
 of our Solar System.

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It's just like a treasure hunt. 

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What you discover could teach us
 about the history of the Solar System

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and how the planets, including Earth,
 came to be the way they are.

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I won't hold you up any longer. 

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Safe travels on your journey. 

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Be sure to write home
 and tell us all about it.