The Earth Is Unique
As far as science "knows," the planet earth is unique in the entire universe. Certainly this is true in our own solar system. Nothing that we have observed leads us to believe that there is any other planet like earth.
A brief glance at the earth compared to all other known planets reveals many contrasts. Even from outer space, the earth stands in start contrast to the other seven planets in our solar system. More...
Of all the energy the sun gives off, only 0.45 billionths of its daily output strikes the earth. More...
The earth is the only known planet with huge bodies of water. Seventy percent of its surface area consists of oceans, lakes, and seas surrounding huge bodies of land. More...
The mixture of gases usually found in the atmosphere not contaminated by human pollution is perfect for life. If it were much different (e.g. 17 percent instead of 21 percent oxygen, too little carbon dioxide, etc., or the atmospheric pressure were much higher or lower), life would cease to exist on earth. More...
Earth is far better suited for life than any other planet. More...