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New Paper Suggests Life Could Be Common Across The Universe:The building blocks of life can, and did, spontaneously assemble under the right conditions. That's called spontaneous generation, or abiogenesis.
The study relies heavily on a couple of concepts. The first is the vast age and size of the Universe, how it's inflated over time, and how likely events are to occur. The second is RNA; specifically, how long a chain of nucleotides needs to be in order to "expect a self-replicating activity" as the paper says.
When cosmologists add up the number of stars in the observable Universe with the number of stars in the unobservable Universe, the resulting number is 10^100 Sun-like stars. That means there is much more matter in play, and the abiogenic creation of long enough chains of RNA is not only possible, but probable, or even inevitable.
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