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shallow Martian soil, also called recurrent slope lineae, may be grains of flowing sand and dust slipping downhill to make dark streaks. While most water ice...

Martian regolith is the fine blanket of unconsolidated, loose, heterogeneous superficial deposits covering the surface of Mars. The term Martian soil typically...

currently thin Martian atmosphere prohibits the existence of liquid water on the surface of Mars, but many studies suggest that the Martian atmosphere was...

great amounts of gas, mainly water vapor and CO2. Enough gas may have been released by volcanoes to have made the earlier Martian atmosphere thicker than Earth's...

astronomer William Wallace Campbell showed that neither water nor oxygen were present in the Martian atmosphere. The influential observer Eugène Antoniadi...

The Martian is a 2015 science fiction film directed by Ridley Scott and starring Matt Damon. Drew Goddard adapted the screenplay from the 2011 novel by...

Mars is the proposed process of establishing and maintaining control of Martian land for exploitation and the possible settlement of Mars. Most colonization...

permanent water ice, up to 60 kilometres (37 mi) in diameter. The ice is permanently stable because the crater acts as a natural cold trap. The thin Martian air...

obstacles, as it does on some Martian craters. Regions, called "chaotic terrain", seemed to have quickly lost great volumes of water which caused large channels...

The Martian Manhunter (J'onn J'onzz) is a superhero in American comic books published by DC Comics. Created by writer Joseph Samachson and artist Joe...

The Martian Way is a science fiction novella by American writer Isaac Asimov. It was first published in the November 1952 issue of Galaxy Science Fiction...

A Martian meteorite is a rock that formed on Mars, was ejected from the planet by an impact event, and traversed interplanetary space before landing on...

canals to transport the water to drier equatorial regions. Newspaper and magazine articles about Martian canals and "Martians" captured the public imagination...

779 km (4,212 mi). In terms of orbital motion, a Martian solar day (sol) is equal to 24.5 hours, and a Martian solar year is equal to 1.88 Earth years (687...

properties of the Martian soil and atmosphere. Early Mars would have required a denser atmosphere and warmer climate to allow liquid water to remain at the...

Miss Martian (M'gann M'orzz; alias Megan Morse) is a superheroine appearing in American comic books published by DC Comics. An extraterrestrial, she is...

of Water on Mars". Phoenix Mars Lander. NASA. June 20, 2008. Archived from the original on 2008-07-01. "NASA's Phoenix touches, tastes Martian water"....

dioxide atmosphere of Mars by zirconia electrolysis, without using any Martian water resources to obtain hydrogen, which would be needed to make methane...

developed lowlands, which may have served as reservoirs for ancient Martian water during subsequent epochs. These lowlands likely formed through lava...

The Martian Chronicles is a science fiction fix-up novel, published in 1950, by American writer Ray Bradbury that chronicles the exploration and settlement...