We like to think of our planet as perfect for life, having met all the conditions we know of for life to exist, flourish and thrive for billions of years. After all, here on Earth, with our not-too-thick and not-too-thin atmosphere, we’ve got liquid water on our surface, made possible by the pressure and temperature combinations at sea level.

from Forbes – Tech http://ift.tt/1Lkxhzz
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