Probing Evolution
Why The First Microbes May Have Descended From Other Planets
9 compelling arguments from 35 biologists and physicists.
A team of 35 biologists and physicists across disciplines, from diverse countries, collaborated on a 2018 review paper published in Progress in Biophysics and Molecular Biology. Let’s decode (and re-structure) what this controversial academic paper has to offer.
Why Life May Not Have Begin On Earth
[1] The earliest evidence of life on Earth dated back 3.83 billion years ago. This period coincides with the meteor showers Earth faced 3.8 to 4 billion years ago — that would have wiped out all present life forms.
[2] The Earth’s climate 4 billion years ago was blazing hot that it can degrade simple organic molecules. And life is essentially carbon-based because organic carbon molecules are needed to form stable bonds that hold the basic building blocks of life — e.g., amino acids and DNA — together.
[3] Biological units — e.g., amino acids and DNA — need to assembly correctly to form a single living cell…
