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| Are in the news as natural phenomena that also appear on Mars and Saturn's biggest moon, Titan. |
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| Where the base of a star sand dune can be up to 13,000 years old whilst the peaks are typically nearer 1000 years old. |
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| A star dune is formed by the wind blowing in two opposing directions – from the south-west and the north-east – leading to the sand building up. |
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| A steady third wind that blows from the east shifts the dune slowly west at a rate of about 50cm a year. Please left click here to learn more about this subject. |
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