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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THE ROTATION OF EARTH AND MARS 1. Despite their big difference in size, the 24-hour rotation periods (or "days") for Earth and MArs are about the sane. A day on Mars is slightly longer than here.
NASA