Mars is similar to Earth in many ways. Like Earth, it has clouds, winds, a roughly 24-hour day, seasonal weather patterns, polar ice caps, volcanoes, canyons, and other familiar features. There are clues that billions of years ago Mars was even more like Earth, with a denser, warmer atmosphere, rivers, lakes, flood channels, and perhaps oceans.
Mars Article
What do Mars and Earth have in common?
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