Planet Mars Astronomy, History and Mythology

The astronomy, history and mythology associated with Earth's red neighboring planet Mars, including perihelions and aphelions, a closer look at the planet, pink skies and blue sunsets.

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ATMOSPHERE DENSITY. The "air" on Mars is about 10 times thinner than that on Earth and is composed almost entirely of carbon dioxide. Temperatures generally range from -120 degrees Fahrenheit nighttime lows to -20 degrees Fahrenheit daytime highs.
NASA