Mars wiki

The two moons of Mars are Phobos and Deimos.

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 Planet ". It is classified as a terrestrial planet and is the second smallest of the Solar System 's planets with a diameter of 6, km 4, mi. In terms of orbital motion, a Martian solar day sol is equal to Mars has two natural satellites that are small and irregular in shape: Phobos and Deimos.

Mars wiki

These WGs are focused on and responsible for advancing a specific technology area. There are 5 active working groups at this time:. As needed, these WGs can be re-activated as is or re-purposed. Also as needed, new WGs can be created. For more information go to their respective wiki pages. Coming improvement — one stop shop for all documents produced during the last meeting. Resulting list will be displayed in reverse document number order. Two versions are posted:. Both work with data recorded since November and are updated after each TC meeting. For example:. Note: All these sites, except for the Meeting Resource hub, are public sites.. Documents Produced During Last Meeting.

Archived from the original on 18 April Retrieved November 4, The Athabasca Valles is home to sheet-like lava flows created about mya, mars wiki.

Mars is the fourth planet from the Sun. Mars has been discovered and observed since ancient times since BCE. It is referred to as the "Red Planet" because of its reddish hue that is given by the iron oxide on its surface. Mars is the most similar planet to Earth , because it has water glaciers on its poles and orbits in the outer edge of the habitable zone. Mars has two asteroid-like natural satellites: Phobos and Deimos. The former being larger. Mars' atmosphere is very thin, about only a hundredth of Earth 's atmosphere density.

Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System. Mars is a terrestrial planet with polar heat caps of hot water and carbon dioxide. Mars is named after the mythological Roman god of war because it appears of red color. Anything that has to do with Mars is called "Martian". Space probes , such as the Viking program landers, are the main tools for the exploration of Mars. Mars is a terrestrial planet and made of rootk. The ground there is red because of iron oxide rust in the rocks and dust. It is mostly carbon dioxide with some argon and nitrogen and tiny amounts of other gases including oxygen.

Mars wiki

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor. The red planet Mars, named for the Roman god of war, has long been an omen in the night sky. Now, the world is a cold, barren desert with few signs of liquid water. But after decades of study using orbiters, landers, and rovers, scientists have revealed Mars as a dynamic, windblown landscape that could—just maybe—harbor microbial life beneath its rusty surface even today. With a radius of 2, miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is Mars rotates on its axis every Whichever hemisphere is tilted closer to the sun experiences spring and summer, while the hemisphere tilted away gets fall and winter. At two specific moments each year—called the equinoxes—both hemispheres receive equal illumination.

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Spring warming in certain areas leads to CO 2 ice subliming and flowing upwards, creating highly unusual erosion patterns called "spider gullies". Average orbital speed. View history Talk 0. Mean density. Cambridge University Press. New York City: Random House. Mars has two relatively small compared to Earth's natural moons, Phobos about 22 kilometres 14 mi in diameter and Deimos about 12 kilometres 7. Giacomo Maraldi determined in that the southern cap is not centered on the rotational pole of Mars. Solar System. Civilized life in the Universe: scientists on intelligent extraterrestrials. New York: Wiley. ALA readers' advisory series. Elsewhere, particularly on the oldest areas of the Martian surface, finer-scale, dendritic networks of valleys are spread across significant proportions of the landscape. Layering suggests the mantle was deposited multiple times.

Mars is the fourth planet from the Sun, and the seventh largest. Mars is 1. A Martian day is a little longer than Earth's; a Mars year is almost two Earth years.

Phobos was discovered by Asaph Hall in Archived from the original on 28 April Auroras have been detected on Mars. Giant asteroid flattened half of Mars, studies suggest. Popular Astronomy. Jewitt surveyed nearly the entire Hill sphere of Mars for irregular satellites. Showbuzz Daily. Retrieved 5 August Archived 20 July at the Wayback Machine Transcript Archived 6 November at the Wayback Machine This article incorporates text from this source, which is in the public domain. Bibcode : NatGe Mars is approximately half the diameter of Earth, with a surface area only slightly less than the total area of Earth's dry land. NASA website. A member's only version that needs a userid and password to access.