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Earth
Proper Name
  Earth
Sidereal Period
  1 year
  365.26 days
Mean Distance from the Sun
  149.6 million km
  1 AU
Sidereal Day
  23 hours, 56 minutes
Diameter
  12,735 km
Mean Surface Temperature
  15°C
Moons
  The Moon
A view of Antarctica
A bleak outcropping of rock on Earth's icy south polar continent. Due to various factors, including the presence of life, Earth displays a greater range of environmental conditions than any other known world.
The largest of the terrestrial planets, and the only planet in the universe known to harbour life.


A View of Earth
You are here. The unique Earth, home to more than 6,000,000,000 individual humans and literally countless other species of animals and plants. Nothing else like it is known anywhere in the universe. Surface map courtesy Jet Propulsion Laboratory. Copyright (c) California Institute of Technology, Pasadena, CA. All rights reserved.
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