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The top documents tagged [earth balloon]
Education
Wetlands Education Team West Geauga Local Schools
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Mars Basics. Size & Distance Smaller than Earth (0.532x) Mars diam ~ 6779 km (4212 miles) Earth diam ~ 12,742 km (7918 miles) 8 Mars would fit inside
216 views
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Mars Basics
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December 2010 Hoofbeats
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Global Perspective, Vol. 8, No. 1
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