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  2. Martian polar ice caps - Wikipedia

    en.wikipedia.org/wiki/Martian_polar_ice_caps

    1995 photo of Mars showing approximate size of the polar caps. The planet Mars has two permanent polar ice caps of water ice and some dry ice (frozen carbon dioxide, CO 2).Above kilometer-thick layers of water ice permafrost, slabs of dry ice are deposited during a pole's winter, [1] [2] lying in continuous darkness, causing 25–30% of the atmosphere being deposited annually at either of the ...

  3. Geology of Mars - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Mars

    The polar ice caps are well-known telescopic features of Mars, first identified by Christiaan Huygens in 1672. [42] Since the 1960s, we have known that the seasonal caps (those seen in the telescope to grow and wane seasonally) are composed of carbon dioxide (CO 2 ) ice that condenses out of the atmosphere as temperatures fall to 148 K, the ...

  4. Common surface features of Mars - Wikipedia

    en.wikipedia.org/.../Common_surface_features_of_Mars

    After the dry ice is gone, new channels are visible. These gullies may be caused by blocks of dry ice moving down the steep slope or perhaps from dry ice starts the sand moving. [16] In the thin atmosphere of mars, dry ice will expel carbon dioxide with vigor. [17] [14]

  5. Mare Australe quadrangle - Wikipedia

    en.wikipedia.org/wiki/Mare_Australe_quadrangle

    Around the southern ice cap is a surface, called the Dorsa Argentea Formation that may be an old ice-rich deposit. It contains a group of sinuous, branched ridges that resembles eskers that form when streams are under glaciers. [5] The formation often contains pits: two major locations are named Cavi Angusti and Cavi Sisyphi. The pits have ...

  6. Mars - Wikipedia

    en.wikipedia.org/wiki/Mars

    Carbon dioxide is substantially present in Mars's polar ice caps and thin atmosphere. During a year, there are large surface temperature swings on the surface between −78.5 °C (−109.3 °F) to 5.7 °C (42.3 °F) [c] similar to Earth's seasons, as both planets have significant axial tilt. Mars was formed approximately 4.5 billion years ago.

  7. Glaciers on Mars - Wikipedia

    en.wikipedia.org/wiki/Glaciers_on_Mars

    [31] [32] Ice was found both in the southern hemisphere [33] and in the northern hemisphere. [34] Researchers at the Niels Bohr Institute combined radar observations with ice flow modelling to say that ice in all of the Martian glaciers is equivalent to what could cover the entire surface of Mars with 1.1 meters of ice.

  8. New 3-D map of Mars' ice caps reveal hidden structures - AOL

    www.aol.com/article/2017/01/05/new-3-d-map-of...

    Scientists have announced the discovery of structures like layering and potential impact craters which had been hidden under Mars’ polar ice caps. New 3-D map of Mars' ice caps reveal hidden ...

  9. Climate of Mars - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Mars

    Mars has ice caps at its north pole and south pole, which consist mainly of water ice; however, there is frozen carbon dioxide present on their surfaces. Dry ice accumulates in the north polar region ( Planum Boreum ) in winter only, subliming completely in summer, while the south polar region additionally has a permanent dry ice cover up to ...