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Mars is the fourth planet from the sun and about half the size of Earth. It has a thin atmosphere and reddish surface due to the iron oxide present. Temperatures on Mars range from about -200 degrees F to 80 degrees F. Mars is considered the most likely planet to have supported life in the past. Jupiter is the largest planet in the solar system and extremely cold with an average temperature of -150 degrees F. Its striped appearance is caused by thick clouds and it helps protect Earth by vacuuming up comets and asteroids.








