What are Mars?

  • (noun): The 4th planet from the sun.
    Synonyms: Red Planet
    See also — Additional definitions below


Mars is the fourth planet from the Sun and the second smallest planet in the Solar System. Named after the Roman god of war, it is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the volcanoes, valleys, deserts, and polar ice caps of Earth. The rotational period and seasonal cycles of Mars are likewise similar to those of Earth, as is the tilt that produces the seasons. Mars is the site of Olympus Mons, the second highest known mountain within the Solar System (the tallest on a planet), and of Valles Marineris, one of the largest canyons. The smooth Borealis basin in the northern hemisphere covers 40% of the planet and may be a giant impact feature. Mars has two moons, Phobos and Deimos, which are small and irregularly shaped. These may be captured asteroids, similar to 5261 Eureka, a Martian trojan asteroid.

Read more about Mars.

Some articles on Mars:

The Case For Mars - Colonization
... For Zubrin, the attractiveness of Mars Direct does not rest on a single cost-effective mission ... While the work of warming Mars is on-going, true colonization can begin ... The Case for Mars acknowledges that any Martian colony will be partially Earth-dependent for centuries ...
Mars, Incorporated - Recycling
... TerraCycle repurposes waste packaging from Mars Incorporated and Wrigley's operations into products ranging from cell phone holders and laptop sleeves to messenger bags ...
Forrest Mars, Sr. - Early Life and Career
... adult, Forrest reunited with his father at Mars, Inc ... took a buyout from his father and moved to England where he created the Mars bar while estranged from his father in 1933 ... the death of his father, Forrest took over the family business, Mars, Inc, merging it with his own company in 1964 ...
Forrest Mars, Sr.
... Forrest Edward Mars, Sr. 21, 1904 – July 1, 1999) was an American businessman and the driving force of the Mars candy empire ... He is best known for inventing M M's and the Mars bar, as well as orchestrating the launch of Uncle Ben's ...
The Case For Mars
... The Case for Mars The Plan to Settle the Red Planet and Why We Must is a nonfiction science book by Robert Zubrin, first published in 1996, and ... The book details Zubrin's Mars Direct plan to make the first human landing on Mars ... making use of automated systems and available materials on Mars to manufacture the return journey's fuel in situ ...

More definitions of "Mars":

  • (noun): (Roman mythology) Roman god of war and agriculture; father of Romulus and Remus; counterpart of Greek Ares.

Famous quotes containing the word mars:

    It makes us, or it mars us, think on that,
    And fix most firm thy resolution.
    William Shakespeare (1564–1616)

    But in the dome of mighty Mars the red,
    Geoffrey Chaucer (1340?–1400)

    Venus me yaf my lust, my likerousnesse,
    And Mars yaf me my sturdy hardinesse.
    Geoffrey Chaucer (1340?–1400)