bisognatures Archives - Astrobiology

(a) Formation process of the ribose from 10 (Z)-ethene-1,2-diol, 5 formaldehyde, and 5 water under the condition of 10 GPa - 1400 K. (b) Free energy landscape for analyzing the formation process of ribose, as a function of two kinds of C-C distance as the collective variables. To better distinguish the selected carbon atoms, C1 and C2 are marked by yellow and orange colors, respectively. (c) The evolution process of the ribose from the open chain to a five-membered ring (10 GPa - 1400 K). (d) Comparison of the formation ability of five-membered ring and sixmembered ring based on the free energy calculation with the C-O distance as the collective variable. -- physics.bio-ph

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Synthesis And Stability Of Biomolecules Under Earth’s Upper Mantle Conditions

by Keith CowingMay 9, 2024

How life started on Earth is a long-time unsolved mystery. There are various hypotheses ranging from outer space to seabed.