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Surface of Mars captured in fantastic new images

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Crater on Mars
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Nasa scientists have managed to get these fantastic images of the surface of Mars. Here's a crater on the planet. Around it is the material that was thrown out after the impact that created it.

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These fan-shaped deposits suggest there's a delta, that forms when water in a channel flows into a larger area and as the water spreads out, it moves more slowly and drops the sediment that it's carrying.

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Here's a picture of a ridge known as a wrinkle ridge. At the top, is a freshly-created crater - you can tell it's recent because it has quite a sharp rim. The images are from Nasa's HiRISE telescope, orbiting the planet.

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Sand dunes like these are among the most common wind-formed features on Mars - the strength and direction of the wind affects the way the sand dunes look.