P2K - To Mars with Mer

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To MARS with MER - MARS the Planet

The Red Planet

Revolution	Rotation
686.98 Earth days	1.025957 Earth days
Mass	Density
0.64191 x 10²⁷ grams	3.94 gm/cm³
Atmosphere	Craters
carbon dioxide, nitrogen and argon	northern hemisphere has fewer than the southern hemisphere

Radius	Distance From the Sun
3,397 km	227,936,640 km
Surface Temperature	Moons
27� to -133� C	two: Phobos and Deimos
Volcanoes	Water
Olympus Mons is the largest volcano in the solar system	Once certainly had plentiful liquid water, revealed by the winding channels images by Viking. Images from the Mars Global Surveyor Spacecraft even raise the possibility of much more recent flows of liquid water. Thought the evidence is, as yet, unproven.

WANT TO LEARN MORE?
Mission Links: • Athena Mars Exploration Rovers • NASA Mars Exploration Rovers • 2001 Mars Odyssey • Mars Express • Mars Global Surveyor • Mars Pathfinder • Viking Project • Mariner
Websites: • Mars Rover Surprises Continue; Spirit, Too, Finds Hematite • Mars Rover Finds Rock Resembling Meteorites That Fell to Earth • Opportunity Rover Finds Strong Evidence Meridiani Planum Was Wet • Mars Rover Pictures Raise 'Blueberry Muffin' Questions • NASA's Mars Odyssey Changes Views about Red Planet • Scientists Say Mars Has a Liquid Iron Core • Snow Gullies on Mars • Mars Quick Facts
Additional Links: • Mars Exploration Homepage • JPL's Solar System Exploration • The Nine Planets • Views of the Solar System • Windows to the Universe
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