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we embark on a journey that will bring

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us a billion times closer to Titans

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surface

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Titan is Saturn's largest moon right in

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front of Saturn's disk in this image

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taken by the Cassini spacecraft Saturn's

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atmosphere shows a banded structure and

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a number of storms we view the edge of

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Saturn's gigantic ring system the Rings

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cast major shadows onto Saturn's

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southern hemisphere Titan is surrounded

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by a partially transparent brown haze

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features on Titan's surface appear the

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dark regions along Titans equator are

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mostly dune fields the brighter regions

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are Highlands a few hundred metres high

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images taken from the Huygens probe show

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Titans surface in more detail the probe

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had spectrometers that measured small

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variations in the color of Titan's

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surface that are exaggerated here most

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of Titan's surface is brown north of the

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landing site a pair of parallel dark

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dunes stretch east-west along the image

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a large Highland of triangular shape

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lies to the northwest more and more dark

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canyons appear in this area a

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complicated network of channels where

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rivers of methane flowed at some time in

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the past to the east of the landing site

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is a system of bright ridges standing

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out above the dark dry lakebed the

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ridges have intricate structures that

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tell stories about their past the

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Huygens probe descended toward one of

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these ridges as we approach the surface

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further we can see this Ridge in finer

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detail some regions were imaged with

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high resolution just before Huygens

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landed on Titan especially the area to

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the west of the landing site most of

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Titan's surface is covered by dark

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organics that are produced in the

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atmosphere and slowly settle down the

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bright spots may be exposed patches of

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water ice the white dot in the center of

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the image is the landed Huygens probe

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while the probe rotated during the

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descent its orientation after landing

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had the camera looking to the south

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the camera saw a field of pebbles that

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were carried around by a river of

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methane in the past some pebbles are

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larger than a human hand the descent

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imager spectral radiometer is the dark

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green instrument at the south side of

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the Huygens probe it's lamp illuminated

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the surface allowing spectral analysis

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the lamps spotlight stands out brightly

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since days on Titan are even darker than

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cloudy days on earth a little sunlight

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reaches Titans surface due to its thick

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haze and large distance from the Sun the

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right side shows the green dizzer

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instrument with the gold-coloured lamp

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and the three camera windows to its

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right the cameras that provided the