These processes take a Official Jesus Born To Die Whole World In His Hands Shirt years or so and once the Earth becomes potentially capable of supporting life, we actually see the earliest signs of life during that period. It could have just as easily taken another billion years to hit upon the first self-replicating molecule. We don’t know the exact details of how life got started but we do actually know lot about the kinds of processes it would have required. The key event would have been the first self-replicating molecule – which probably was not life as we know it, but an RNA precursor. The next key event would have been the conversion from RNA to DNA-based life. Forming the right kinds of molecules in the right concentrations at the right Ph levels isn’t something a new world is likely to hit upon immediately, and indeed, it seems like it took at least a few hundred million years before we see the first artifacts of life on Earth.
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So, are there lots of More Than Ever Kobe Bryant Tribute Shirt systems like our own? We don’t know. Are systems like ours the only place life, especially intelligent life, can develop? We don’t know. Unfortunately, this area of science is still in the tedious process of collecting sufficient data to make reliable predictions. We know for certain there are exoplanets out there, and there are LOTS of them. The chance that some of them are like Earth is very high. The chance of finding lots of star systems similar to our own is also pretty high; there is no reason to assume we are unique. As our techniques for finding exoplanets get better, as we build better telescopes and better ways of interpreting the data they deliver, we will almost certainly find star systems very like our own. It will just take time.
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