The Earth contains 1 billion billion tons of water Read more
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Ocean
The Earth contains 1 billion billion tons of water
Natural Disaster
For all our progress, humanity remains vulnerable to natural disasters
Asteroids
Earth lies amongst vast numbers of moving objects
Space Flight
Humanity has progressed from gliding in the air to landing on the moon
Extra Terrestrial Life
We still don't know how or why life began on Earth - are we alone in the cosmos?
Solar System
Understanding the solar system
