Post by glactus on Feb 15, 2010 12:20:02 GMT
Are we alone
While many astronomers believe that we are not alone in the universe, and that people alive today have a good chance of hearing news that intelligent life has been detected elsewhere, it may also be true that the planet on which they live would be vastly different from the one we call home.
Alien world
The Earth is unique. There will be nothing like it anywhere in the universe. The distance from the sun to the Earth is also unique. There will be no other planet harboring intelligent life exactly at that distance from it's heat source as the Earth is from its Sun, for all stars are of different sizes, and have vastly different temperature ranges.
The ice planet
It just happens that the temperature of the sun's photosphere (surface) is 7,000 degrees celcius, and the Earth is at a average ditance of 149,476,000 kilometers from it to give us a unique temperature ratio, one that activated the building blocks of life, one that set all living creature on an elvolutionary pathe, the animals, the birds, the insects and the crawly things, and one that created mankind, the intelligent species of the planet Earth.
There will be no other planet laying on the same slant on its axis as the earth, (23.4 degrees), giving us 4 seasons of an average of 91.25 days each, allowing life on Earth to survive on all continents.
But that does not mean that other planets do not support life, for Astronomers believe there are billions of them, but imagine a planet with intelligent life ten times further away from a very large and hot sun and still in the same temperature range as the Earth. Imagine there being no axis slant and no seasons at all, or if there is an axis slant, imagine each season being ten years long because the orbit is so great.What a violent planet it would be, and what species would inhabit such an alien world.
Yes, the Earth is a unique olace.
The planet we call home
Credits: image
blogs.sundaymercury.net/weirdscience/extra-terrestrial-landscape_2411.jpg
image:
www.futurehi.net/images/deepfield.jpg