1. Why Pluto Isn't Officially a Planet? Answered by NASA

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  2. NASA’s Lucy Mission Extends its Solar Arrays

    NASA’s Lucy Mission Extends its Solar Arrays

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  3. How Do Their Names? We Asked a NASA Scientist.

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  4. Lucy Spacecraft Will Slingshot Around Earth

    Lucy Spacecraft Will Slingshot Around Earth

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  5. Lucy Spacecraft Will Slingshot Around Earth

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