Earth means:
In astronomy mythology,
Her Greek name was Geia. Earth was the mother of the
mountains, valleys, streams and all other land formations.
She was married to Uranus.
How big is the Earth?
The Earth is the biggest of all the
terrestrial planets. A terrestrial planet is a dense planet
found in the inner Solar System.
The Planet:
Our planet is an oasis of life in an
otherwise desolate universe. The Earth's temperature,
weather, atmosphere and many other factors are just right to
keep us alive.
Moons:
The Earth has one moon. Its name is
Luna.
