Earth
Web-Science.net
Data
Diameter: 12,756.3 km
Orbit: 149,600,000 km
Extensive info, some technical:
Nine Planets
Links to More Info on the Planet
Earth
Less info to dig through:
Science Monster's Earth
Length of Year: 365.26 days
Mass Relative to Earth: Same
Earth's mass is a huge number:
5.98 x 10(to the 24th power) kg
(that is written 5.98 x 10e24)  which         
looks like
5,980,000,000,000,000,000,000,000
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