Hadean Archives - Page 2 of 2 - Astrobiology

GC chromatogram of carboxylic acids formed by spark discharge in the gas mixture of CO2, CH4, N2, and H2O (rCH4 = 0.25). The sample was analyzed without hydrolysis. C1: formic acid, C2: acetic acid, C3: propanoic acid, iC4: isobutyric acid, C4: butyric acid, iC5: isovaleric acid. -- Life

Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Origin & Evolution of Life, Press Release

Formation of Amino Acids and Carboxylic Acids in Weakly Reducing Planetary Atmospheres by Solar Energetic Particles from the Young Sun

by Keith CowingMay 31, 2023May 26, 2023

Life most likely started during the Hadean Eon; however, the environmental conditions which contributed to the complexity of its chemistry are poorly known.

Schematic model for a primitive RNA metabolic system

Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Press Release

The Role Of Minerals In The Early Stage Of The Hadean Earth

by Keith CowingFebruary 8, 2023

In particular, the interaction between functional ribozymes and ancient minerals under simulated primitive conditions is a recent research focus.

Hadean atmospheric experiments.

Biogeochemical Cycles & Geobiology, Origin & Evolution of Life, Press Release

An Experimental And Theoretical Investigation Of HCN Production In The Hadean Earth Atmosphere

by Keith CowingSeptember 20, 2022September 20, 2022

A critical early stage for the origin of life on Earth may have involved the production of hydrogen cyanide (HCN) in a reducing, predominantly H2 atmosphere. HCN is crucial for […]