About Search 4 Xtraterrestrial Life

In this blog, I talk about how aliens might live, how their bodies might function, what types of aliens there might be, and the possible structures in an alien society. I bring you up-to-date news about anything in space involving the possibilities of life. Also, I talk about the histories of our own species, and their endeavors into space. Please subscribe to my blog, and enjoy reading it!

Some posts include: http://search4xtralife.blogspot.com/2008/12/terraforming-morals.html



Monday, November 24, 2008

Extremophiles - Food for thought

We have found many diverse life forms on our planet. The hardiest of all life forms on Earth are a group of bacteria called extremophiles. Last year scientists thawed out bacteria over 50 thousand years old; the bacteria, after unfrozen, was alive! This shows that life, even on Earth, are prepared for harsh conditions. There are many variants of bacteria that live near melting lava, grow in 7,000 degree F, and underground under enough pressure to crush a human being. One bacteria, found over two miles underground, is able to withstand over 1,500 X the radiation of a nuclear bomb. Another is able to breathe not oxygen, but carbon dioxide. Our life forms here on Earth are diverse; how complex might other life forms be?

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