[shunyadragon]

Originally posted by ruiner, there's always the "from outer space" theory

I have never considered the 'from outer space' theory seriously.

I have heard three theories related to this idea. The first is plausible that the source of some of the proteins may have been extraterrestial, but still from materials from within the solar system. The second is that the first primative organisms are from outer space beyond our solar system. This teory is very weak, because from all known evidence we have about cosmology indicates that our solar system is a closed system from about the time of formation. The third is the least likely. It believes that human origins are extraterrestrial. The first problem with this one is that our genetic origins are so intimately related to life on earth it would be hard to seperate our origins from life on earth. The second problem is that, like the second choice, there is not one shred of evidence for this.