Mars

Mars

Mars is the fourth planet from the Sun. Mars' diameter is 6,790 km and takes 687 days to orbit the Sun. Mars is named after the Roman god of war. In Eastern Asian cultures Mars is also known as the 'Fire Star. '

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Astronomie; Science des planètes

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Astronomie; Science des planètes

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Astronomie; Mars

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Astronomie; Mars

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Astronomie; Mars

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Astronomie; Mars

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Astronomie; Mars

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Astronomie; Mars

Very short wavelength radiations beyond the ultraviolet in the spectrum, which are about one ten-thousandth as long as the visible violet and are extremely penetrating.

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