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  2. Mars habitability analogue environments on Earth - Wikipedia

    en.wikipedia.org/wiki/Mars_habitability_analogue...

    On Earth, although temperatures on Earth briefly get cold enough for dry ice to form in the Antarctic interior at high altitudes, the partial pressure of carbon dioxide in Earth's atmosphere is too low for dry ice to form because the depositional temperature for dry ice on Earth under 1 bar of pressure is −140 °C (−220 °F) [13] and the ...

  3. File:PIA21260 - Earth and Its Moon, as Seen From Mars ...

    en.wikipedia.org/wiki/File:PIA21260_-_Earth_and...

    English: Simulated comparison of view of earth-moon from Mars. Date: 2 March 2017: Source: NASA/JPL-Caltech/Univ. of Arizona and Own work: Author: Tomruen: Other ...

  4. File:Mars, Earth size comparison.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Mars,_Earth_size...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  5. Geology of Mars - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Mars

    The northern part is an enormous topographic depression. About one-third of the surface (mostly in the northern hemisphere) lies 3–6 km lower in elevation than the southern two-thirds. This is a first-order relief feature on par with the elevation difference between Earth's continents and ocean basins. [12]

  6. Planetary habitability - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability

    While Earth is the only place in the Universe known to harbor life, [10] [11] estimates of habitable zones around other stars, [12] [13] along with the discovery of thousands of exoplanets and new insights into the extreme habitats on Earth where organisms known as extremophiles live, suggest that there may be many more habitable places in the ...

  7. Earth Similarity Index - Wikipedia

    en.wikipedia.org/wiki/Earth_Similarity_Index

    Though differing in size and temperature, terrestrial planets of the Solar System were reported to have high Earth Similarity Index values – Mercury, Venus, Earth and Mars. Sizes to scale. The Earth Similarity Index (ESI) is a proposed characterization of how similar a planetary-mass object or natural satellite is to Earth. It was designed to ...

  8. Areography - Wikipedia

    en.wikipedia.org/wiki/Areography

    Areography, also known as the geography of Mars, is a subfield of planetary science that entails the delineation and characterization of regions on Mars. [1] [2] [3] Areography is mainly focused on what is called physical geography on Earth; that is the distribution of physical features across Mars and their cartographic representations.

  9. Astronomy on Mars - Wikipedia

    en.wikipedia.org/wiki/Astronomy_on_Mars

    The maximum angular separation of the Earth and Moon varies considerably according to the relative distance between the Earth and Mars: it is about 25′ when Earth is closest to Mars (near inferior conjunction) but only about 3.5′ when the Earth is farthest from Mars (near superior conjunction). For comparison, the apparent diameter of the ...

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