How and where did life on Earth originate? To date, various environments have been
proposed as plausible sites for the origin of life. However, discussions have focused on a …

The chemistry of abiotic nucleotide synthesis of RNA and DNA in the context of their
prebiotic origins on early earth is a continuing challenge. How did (or how can) the …

Single-atom site catalysts (SACs) can maximize the utilization of active metal species and
provide an attractive way to regulate the activity and selectivity of catalytic reactions. The …

The origin of life on Earth seems to demand a highly reduced early atmosphere, rich in CH
4, H 2, and NH 3, but geological evidence suggests that Earth's mantle has always been …

Ideas about atmospheric composition and climate on the early Earth have evolved
considerably over the last 30 years, but many uncertainties still remain. It is generally agreed …

Sources of organic molecules on the early Earth divide into three categories: delivery by
extraterrestrial objects; organic synthesis driven by impact shocks; and organic synthesis by …

Obtaining carbon isotopic information for organic carbon from Martian sediments has long
been a goal of planetary science, as it has the potential to elucidate the origin of such …

Here we argue that life emerged on Earth from a redox and pH front at c. 4.2 Ga. This front
occurred where hot (c. 150° C), extremely reduced, alkaline, bisulphide-bearing, submarine …

The widespread presence of ribonucleic acid (RNA) catalysts and cofactors in the Earth′ s
biosphere today suggests that RNA was the first biopolymer to support Darwinian evolution …

Updated chemical schemes and estimates of key rate coefficients are used in the present
investigation of the photochemistry of Titan atmosphere CH-and O-atom containing simple …