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Planet
Earth Basic Information
1.Earth
is the third planet from the Sun and the fifth largest:
Orbit: 149,600,000 km (1.00 AU) from Sun
Diameter: 12,756.3 km
Mass: 5.972e24 kg
2.Earth's
layers according chemical and seismic properties (depths in km):
0- 40 Crust
40- 400 Upper mantle
400- 650 Transition region
650-2700 Lower mantle
2700-2890 D'' layer
2890-5150 Outer core
5150-6378 Inner core
3.Chemical
composition (by mass) of planet Earth:
34.6% Iron
29.5% Oxygen
15.2% Silicon
12.7% Magnesium
2.4% Nickel
1.9% Sulfur
0.05% Titanium
Planet
Earth Views From Earth Explorer
1. Observe
Planet Earth From Outer Space:

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2. United
States:

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