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  1. Pluto is covered with unexpected dunes of methane ice

    Publishing date:

    August 17, 2018

    The American spacecraft New Horizons discovered dunes made of methane ice on the dwarf planet Pluto. Unexpected finding since it took winds to carve them and that Pluto has practically no atmosphere. To understand their formation, we here discuss this matter with François Forget, astrophysicist and co-author of the study published in Science.

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  2. Cassini reveals giant dust storms on Titan

    Publishing date:

    October 5, 2018

    These giant dust storms seen at the equator on Titan rise as far as 10 kilometres above the surface. Mars and Earth are no longer the only worlds in the solar system where such phenomena are known to occur. We put three questions to Sébastien Rodriguez, a planetologist at the IPGP global physics institute in Paris and lead author of this discovery published in the journal Nature Geoscience on 24 September.

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  3. Pluton est couverte d’improbables dunes de glace de méthane

    Publishing date:

    June 15, 2018

    Ce sont des dunes faites de glace de méthane que la sonde américaine New Horizons a découvertes à la surface de la planète naine Pluton. Chose inattendue, puisqu’il a fallu des vents pour les sculpter, et que Pluton n’a pratiquement pas d’atmosphère. Pour comprendre leur formation, nous en discutons avec François Forget, astrophysicien et co-auteur de l’étude parue le 1er juin dans la revue Science.

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  4. Sand dunes on Titan

    Publishing date:

    May 24, 2006

    The Cassini spacecraft has revealed sand dunes on the surface of Titan, Saturn’s giant moon. The dunes look very similar to those seen in the Namibian desert. They appear to have been sculpted in much the same way as dunes on Earth, even though conditions on Titan are very different.

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  5. Dunes au pôle Nord de Mars

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      Publishing date:

      September 19, 2019
      is_dunes_mars_tgo2.jpg

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