Illustration of meteorite shower heading for earth

All RNA and DNA Base Types Are Found in Meteorites, Study Claims

The discovery could add weight to the hypothesis that the building blocks of life on Earth originally came from space, but some scientists note the possibility of contamination.

All RNA and DNA Base Types Are Found in Meteorites, Study Claims

The discovery could add weight to the hypothesis that the building blocks of life on Earth originally came from space, but some scientists note the possibility of contamination.

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nucleotides, evolution

nucleotides, evolution

RNA might have incorporated inosine, a derivative of adenosine, in place of guanosine

Primordial RNA May Have Contained Inosine

Catherine Offord | Mar 1, 2019 | 2 min read

The discovery that the adenosine derivative aids self-replication adds weight to the theory that life on Earth originated from a mixture of RNA molecules.

DNA’s Coding Power Doubled

Ruth Williams | Feb 21, 2019 | 3 min read

All life on Earth uses a genetic code based on four nucleotides. Now, scientists have created one with eight.