Earth is the 3rd planet from the Sun and the only planet on which life is known to exist. Earth formed over 4 billion years ago. Earth’s gravity interacts with other objects in space, especially the Sun and the Moon, Earth’s only natural satellite. Earth revolves around the Sun in 365.26 days a period known as an Earth year. Earth’s mass is approximately 5.97×1024 kg. The mean density and surface gravity of Earth is 5.514 g/cm3 and 9.807 m/s2 respectively.
20-03-2018 : Earth The Solar System A commemorative postage stamp
20 in stock
SKU: INDS09000782315085 Category: Stamps
|Dimensions||1 × 1.1 × 0.9 mm|
The Solar System
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