Describes the orbit, rotation, temperature, and surface formations of the planet Mercury and the probe Mariner X that took pictures of it in 1974 and 1975.

Mercury 1999, Children's Press(CT), New York, NY

ISBN-13: 9780516264363

Trade paperback

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Mercury 1998, Children's Press(CT), New York, NY

ISBN-13: 9780516206196

Hardcover

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