Mars Controversy
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Links
STATISTICS: Mars data
http://www.nytimes.com/library/national/science/mars-index.html
The New York Times - Mars data and recent news articles.
Mean Radius: 3388.0 km
• Mass: 0.108 (Earth=1)
• Density: 3.94 (g/cm3)
• Gravity: 0.380 (Earth=1)
• Orbit Period: 686.98 (Earth days)