The atmosphere of Mars is the layer of gases surrounding Mars. It is primarily composed of carbon dioxide (95%), molecular nitrogen (2.85%), and argon...

The terraforming of Mars or the terraformation of Mars is a hypothetical procedure that would consist of a planetary engineering project or concurrent...

Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red...

soil and rocks at the planet's surface, and biomarker gases in the atmosphere. Mars is of particular interest for the study of the origins of life because...

atmosphere. Atmosphere of the Sun Atmosphere of Mercury Atmosphere of Venus Atmosphere of Earth Atmosphere of the Moon Atmosphere of Mars Atmosphere of...

are also important differences, such as much lower thermal inertia. Mars' atmosphere has a scale height of approximately 11 km (36,000 ft), 60% greater...

more than twice the circumference of Mars. Mars' atmosphere density is 6.35 mbar, 160x thinner than Earth's atmosphere at 1013.2 mbar. During the southern...

little atmosphere the Moon has consists of some unusual gases, including sodium and potassium, which are not found in the atmospheres of Earth, Mars, or...

System have atmospheres. These include all the giant planets, as well as Mars, Venus and Titan. Several moons and other bodies also have atmospheres, as do...

Mars Pathfinder was an American robotic spacecraft that landed a base station with a roving probe on Mars in 1997. It consisted of a lander, renamed the...

Almost all water on Mars today exists as polar permafrost ice, though it also exists in small quantities as vapor in the atmosphere. What was thought to...

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

Mission to Mars is a 2000 American science fiction adventure film directed by Brian De Palma, written by Jim Thomas, John Thomas, and Graham Yost, and...

Mars Exploration Program (MEP) is a long-term effort to explore the planet Mars, funded and led by NASA. Formed in 1993, MEP has made use of orbital spacecraft...

of Mars. The term Martian soil typically refers to the finer fraction of regolith. So far, no samples have been returned to Earth, the goal of a Mars sample-return...

and altering its atmosphere, and NASA has even hosted debates on the subject. Several potential methods for the terraforming of Mars may be within humanity's...

The Mars trilogy is a series of science fiction novels by Kim Stanley Robinson that chronicles the settlement and terraforming of the planet Mars through...

gravity of Mars is a natural phenomenon, due to the law of gravity, or gravitation, by which all things with mass around the planet Mars are brought...

Robinson Crusoe on Mars is a 1964 American science fiction film directed by Byron Haskin and produced by Aubrey Schenck that stars Paul Mantee, Victor...

The Mars Observer spacecraft, also known as the Mars Geoscience/Climatology Orbiter, was a robotic space probe launched by NASA on September 25, 1992,...

Life on Mars is a British television series broadcast on BBC One between 9 January 2006 and 10 April 2007. It follows Sam Tyler (John Simm), a Manchester...

the Earth, making its upper atmosphere the most Earth-like area in the Solar System, even more so than the surface of Mars. Due to the similarity in pressure...

Mars Orbiter Mission (MOM), unofficially known as Mangalyaan (Sanskrit: Maṅgala 'Mars', Yāna 'Craft, Vehicle'), was a space probe orbiting Mars since...

Curiosity is a car-sized Mars rover exploring Gale crater and Mount Sharp on Mars as part of NASA's Mars Science Laboratory (MSL) mission. Curiosity was...

The NASA-ESA Mars Sample Return is a proposed Flagship-class Mars sample return (MSR) mission to collect Martian rock and soil samples in 43 small, cylindrical...

on the planet Mars. These were a network of long straight lines in the equatorial regions from 60° north to 60° south latitude on Mars, observed by astronomers...

Ghosts of Mars (titled onscreen as John Carpenter's Ghosts of Mars) is a 2001 American space Western action horror film written, directed and scored by...

Mars, the fourth planet from the Sun, has appeared as a setting in works of fiction since at least the mid-1600s. Trends in the planet's portrayal have...

The history of Mars observation is about the recorded history of observation of the planet Mars. Some of the early records of Mars' observation date back...

The Mars Reconnaissance Orbiter's HiRISE instrument has taken many images that strongly suggest that Mars has had a rich history of water-related processes...