Basically I’m aware of how Big Bang led to expansion of universe, gases, atoms etc. But how did some presumably basic radiation/heat mechanisms lead to literal organisms that had life? It doesn’t make sense to me.
In: Biology
What you are asking is an ongoing question. The study of this is called abiogenesis.
Now we admittedly have no definitive proof of how it happened. But we do have complex life, so it happened somehow!
We have established that in the conditions that would probably have been present in the early stages of the earth. It is possible for the chemical building blocks to be present, and combine to form amino acids, early proteins. This is the basic building block of life.
In 1952 a now famous experiment, the [Miller-Urey](https://www.youtube.com/watch?v=NNijmxsKGbc&ab_channel=StatedClearly), experiment established that it was possible. Later work repeated, and built on this. Making this not only possible, but given the huge periods of time involved, quite probable. Later experiments found that you can get to the amino acid stage from a surprisingly wide range of starting points.
WE have even found traces of amino acids and complex sugars out in space. So we know that it’s not just happening here on earth. In fact ti is more common that we have ever previously imagined. But given the wider range of conditions in the vast universe, and a 14 000 000 000 year time frame, perhaps we shouldn’t be so surprised.
Latest Answers