Cosmology, Biology
Date : April, 2021
Source : Science Alert
Analysing carbon-rich meteorites found in Australia (1969), Kentuky (1950) and British Columbia (2000), a team of researchers have identified nucleobases like purines and pyrimidines which were not detected previously in meteorites. These nucleobases participates to the building of the structural backbone of DNA and RNA. Such organics are considered to have play an important rôle in the chemical evolution of the Earth’s primordial stage (4 billion years ago). This is another sign of the Panspermia theory early last century.
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Read the scientific paper on Nature