we have a few different possibilities as to how it came here. But it seems to me, that if life on Earth did originate elsewhere. from what I have heard all we do is put a catalyst with the carbon and it arranges itself into highly accurate structures seems kinda similar to life, IMHO. Perhaps carbon nanotube production is actually evidence of that force. I suspect that there is possibly an aspect of the electromagnetic force and the unique element carbon which encourages life to develop. I take a very Copernican view to life I don't think life is rare, I think the Universe is probably filled with it. so perhaps the amino acids in the meteorites is actually the remnants of DNA or RNA. I have also heard that DNA and RNA reaminatizes in a relatively short period of time. From my understanding, the general consensus is that both water and amino acids arrived on Earth via meteorites. But I think it was in the '60s that a meteorite was found containing amino acids, and I know at some point meteorites have been discovered which contained water. but perhaps some of the "tin foil hat" theories aren't so unrealistic after all įrom what I have heard, amino acids could not have formed in early Earth's atmosphere. Pretty quickly(billions of years) the Universe would be covered with life Could it be that the reason we are having a hard time proving abiogenesis is actually because it didn't happen on Earth? Could myths like Noah's Ark actually have their roots in fleeing a dying planet and colonizing a new one from scratch? Could the Hindu Vedas actually have more historical accuracy than is generally thought? Could ancient UFO tales actually be true? Do humans come from aliens Will Gene Roddenberry be looked upon similar to Jules Verne, and we join a "Federation of Planets"? Sorry, got a little off track there. The new terraforming life form proceeds to terraform, and create new terraforming life forms. Now this new life form needs to terraform.
The problem is, eventually, the terraformed planet may evolve advanced civilization as well. What is the best way to terraform as we know it? Seed a planet with a bunch of organic carbon, amino acids, water, oxygen, etc., and basic life with photosynthetic capabilities. Just like humans, aliens would have seen the need to terraform. All advanced life, would quickly realize that it is just "renting" the planet. So perhaps advanced alien life evolved by about 7.5 billion years ago. (this is just for fun, don't get hung up on specifics please) If life had evolved by 12 billion years ago, how long until advanced civilization evolved? Again, let's just use Earth and say 4.5 billion years. But a star needed to form, and a whole bunch of other things, so let's just say that if life does evolve anywhere possible, that it had probably evolved by 12 billion years ago.
Warning: This is just for fun and to keep our imaginations fresh What if life evolving in the Universe isn't rare? What if some unknown quantum property of the electromagnetic force actually causes life to evolve everywhere possible? If the Universe is ~13.5 billion years old, how long before the first life showed up? From various tests, scientists believe Earth is roughly 4.5 billion years old, and that life first appeared roughly 4.4 billion years ago.
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