SCIENCE
(3) K-3 Science Links series. A survey of Earth's close neighbor describes, in simple prose and with color illustrations, Mars's surface and atmosphere, its changing face over billions of years, and the intriguing possibility that life may once have existed on the red planet. The book also touches on astronaut training for a possible manned mission to Mars in 2015; a timeline of space exploration leading to this date is included. Glos., ind.

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