Quote:
Originally Posted by RalofTyr
The aliens already came here. The found a world, with a large moon with vast oceans of water. The set up a colony and existed for a million years before eventually becoming extinct. That was 4 billion years ago and bacteria, which hitched a ride with them, thrived here on this alien world. There is no evidence of their existence. The earth has weathered their mighty pyramids to nothing. However, they did manage to have a refueling base on the Moon, in which the Chinese orbiter will find in a few weeks.
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The dissapeared in one night of volcanoes and earthquakes, sinking beneath the sea. Their pyramids may have eroded, but somewhere in the mantle--long subducted--floats their indestructable ship. Someday in the far off future of 2012 it will be thrown out of a volcanoe much like the one that destroyed their civilization. We, the descendant of the scum of their ship, will gape in awe at the name...ATLANTIS on the side...
Sorry, couldn't resist.
So twice I've typed a real answer in as an edit, and twice I've been denied. It was a decent answer to. I'm not going to retype it a third time AGAIN, so just
google protobionts. That will be similar to what I was going to say, but not as succint. I had all the important parts pulled out and arranged, but I trust your critical reading skills.
If you don't understand, or don't google, a protobiont is essentially an aggregation of organic molecules that are assembled abiotically and can do so without help under labratory conditions. They can reproduce (albeit imperfectly), and can maintain an environment inside themselves that is different from the outside conditions. There are other things that suggest they may be precursors to life as we know it--look up your local biology textbook.
Anyway, twice is enough and I don't want to type out a third time, so take it or leave it, this is the extent of what I think we will find out there. Or something like it.