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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. Angustus Labyrinthus - Wikipedia

    en.wikipedia.org/wiki/Angustus_Labyrinthus

    Angustus Labyrinthus is a complex of intersecting valleys or ridges near the Martian south pole (in the Mare Australe quadrangle), located at 81.68° S and 63.25° W.It was nicknamed the "Inca City" by NASA scientists due to its superficial resemblance to a ruined city. [1]

  4. Areography - Wikipedia

    en.wikipedia.org/wiki/Areography

    Residual north and south polar ice caps are shown at upper and lower right as they appear in early summer and at minimum size, respectively. Areography, also known as the geography of Mars, is a subfield of planetary science that entails the delineation and characterization of regions on Mars.

  5. Cydonia (Mars) - Wikipedia

    en.wikipedia.org/wiki/Cydonia_(Mars)

    Of the seven good images, the lighting and time at which two pairs of images were taken are so close as to reduce the number to five distinct images. The Mission to Mars: Viking Orbiter Images of Mars CD-ROM set image numbers for these are: 035A72 (VO-1010), 070A13 (VO-1011), 561A25 (VO-1021), 673B54 & 673B56 (VO-1063), and 753A33 & 753A34 (VO ...

  6. Mare Australe quadrangle - Wikipedia

    en.wikipedia.org/wiki/Mare_Australe_quadrangle

    This group of ridges extends from 270–100 E and 70–90 S, around the south pole of Mars. It sits under the Late Amazonian South Polar Layered Deposits (SPLD). The amount of these ridges is huge, one study studied seven different ridge systems which contained almost 4,000 ridges that had a total length 51,000 km. [ 51 ]

  7. List of terrae on Mars - Wikipedia

    en.wikipedia.org/wiki/List_of_terrae_on_Mars

    The following is a list of regions on Mars given the name Terra (pl. Terrae). Most cover large, rugged areas, often including outflow channels, cratering, and "chaos terrain". They may be contrasted with the Planitia (e.g., Amazonis Planitia) and Mare (e.g., Mare Erythraeum), smoother regions of differing albedo.

  8. 'Spiders' on Mars? NASA scientists recreate mysterious Red ...

    www.aol.com/spiders-mars-nasa-scientists...

    PHOTO: This image from NASA's Mars Reconnaissance Orbiter, acquired May 13, 2018, during winter at the South Pole of Mars, shows a carbon dioxide ice cap covering the region.

  9. Polar ice cap - Wikipedia

    en.wikipedia.org/wiki/Polar_ice_cap

    Mars's north polar region with ice cap, composite of Viking 1 orbiter images (Courtesy NASA/JPL-Caltech) In addition to Earth, the planet Mars also has polar ice caps. They consist of primarily water-ice with a few percent dust. [11] Frozen carbon dioxide makes up a small permanent portion of the Planum Australe or the