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How Did Robots Land on Mars? (How'd They Do That?) - Softcover

MacCarald, Clara

 
9781474773492: How Did Robots Land on Mars? (How'd They Do That?)

Inhaltsangabe

After travelling millions of miles through space, roving robots gently landed on Mars and then drove across its surface. Read this book to learn how engineers accomplished these amazing feats of space exploration.

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