Earth Facts


Explorer Favorite Earth Fact
Galileo Earth is the 3rd planet from the sun and the 5th largest
Magellen Earth is between 4.5 and 4.6 billion years old
Marco Polo 71% of Earth's surface is covered with water
Columbus Earth has only one natural satellite, the Moon
Sir Frances Drake The atmosphere is made up of 78% nitrogen, 21% oxygen and 1% argon
William Herschel Earth's diameter is 12,756 km and its mass is 5.98 x 10^24 kg
Lewis and Clark The length of one day on Earth is 23 hours 56 minutes
Scott and Amundsen There are 365 days in an Earth year

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