#prebiotic — Public Fediverse posts

#GreenTeaBenefits #HealthAndWellness #EGCG #Catechins #Antioxidant #Prebiotic #GutHealth #ImmunityBoost #ScienceOfTea #HealthyLifestyle #GreenTeaBenefits #HealthAndWellness #EGCG #Catechins #Antioxidant #Prebiotic #GutHealth #ImmunityBoost #ScienceOfTea #cleaneating #cleaneatingideas #cleaneatingchallenge #cleaneatinglifestyle #cleaneatingrecipes #cleaneatingrecipe #cleaneatingdiet #cleaneatingjourney #cleaneatingaddict #cleaneatingforlife https://mastodon.social/@biohackingpathway/117020667102158616

Sugars are essential #biomolecules, serving as metabolic fuels, nucleic acid backbone components and structural or energy-storage polymers.

A central question in origin-of-life research is how monosaccharides formed on the primitive Earth, as laboratory experiments under #prebiotic conditions yield insufficient concentrations.

The detection of #ribose, #glucose and other monosaccharides in #asteroids and #meteorites suggests an exogenous origin, possibly in the interstellar medium (ISM) before meteoritic parent-body formation.

However, no #sugar has been observed in the ISM so far.

Now astronomers report the discovery of #erythrulose, a chiral four-carbon ketose, in the ISM.

Erythrulose appears to be at least eight times more abundant than analogous three-carbon sugars, which remain undetected in our ultrasensitive observations.

Quantum chemical and astrochemical models indicate that erythrulose forms efficiently on interstellar dust grains from simpler two-carbon aldehydes and alcohols.

As ketoses readily isomerize into aldoses in aqueous conditions, interstellar erythrulose could have contributed to the sugar inventory available for early metabolic and replication processes.

#astrobiology #astronomy
https://www.nature.com/articles/s41550-026-02905-7

💁🏻‍♀️ TIL: ☄️🧂 A #meteorite that crashed through a #NewJersey home in 2024 contained preserved salts and organic compounds from its parent #asteroid, evidence of ancient brines interacting with #carbon #chemistry.

Researchers found amino acids and other #prebiotic #molecules in the rock. The findings offer new clues about how life’s building blocks may have been delivered to early #Earth.

👉 https://www.seti.org/news/alien-world-chemistry-found-inside-meteorite/

#space #science #astrobiology #seti #nasa #aminoacids #solarsystem #earthscience #meteor

#GreenTeaBenefits #HealthAndWellness #EGCG #Catechins #Antioxidant #Prebiotic #GutHealth #ImmunityBoost #ScienceOfTea #HealthyLifestyle #GreenTeaBenefits #HealthAndWellness #EGCG #Catechins #Antioxidant #Prebiotic #GutHealth #ImmunityBoost #ScienceOfTea #cleaneating #cleaneatingideas #cleaneatingchallenge #cleaneatinglifestyle #cleaneatingrecipes #cleaneatingrecipe #cleaneatingdiet #cleaneatingjourney #cleaneatingaddict #cleaneatingforlife https://mastodon.social/@biohackingpathway/116318280846401564

Organic #molecules delivered from #extraterrestrial materials may have played a key role in supplying building blocks for #life on #Earth.

Now scientists report all five canonical #nucleobases—purines (#adenine and #guanine) and pyrimidines (#cytosine, #thymine and #uracil)—in samples returned from the C-type #asteroid (162173) #Ryugu.

Samples from Ryugu, #Bennu and #Orgueil, which have a similar mineralogy and elemental composition, show purine-to-pyrimidine ratios negatively correlating with #ammonia.

These observations indicate that the nucleobases in these samples may have formed via a shared pathway depending on the physicochemical environment of the respective parent bodies.

The detection of diverse nucleobases in asteroid and meteorite materials demonstrates their widespread presence throughout the Solar System and reinforces the hypothesis that carbonaceous asteroids contributed to the #prebiotic chemical inventory of early Earth.

#astronomy #astrobiology
https://www.nature.com/articles/s41550-026-02791-z

The rise of #prebiotic #drinks: Are they actually good for you?

https://www.bswhealth.com/blog/the-rise-of-prebiotic-drinks-are-they-actually-good-for-you

#Prebiotic #Molecules are Forming in #Space

https://www.universetoday.com/articles/prebiotic-molecules-are-forming-in-space

[IRAP seminar] this Thursday at 11 a.m. by Grégoire Danger from Marseille's Laboratoire de Physique des Interactions Ioniques et Moléculaires (PIIM).

He will address the question of the origin and evolution of organic matter in various astrophysical environments, from dense #molecular #clouds to small bodies (#asteroids and #comets) presumed to be involved in the development of #prebiotic #chemistry on the surface of #telluric #planets.

Details+ : https://www.irap.omp.eu/event/the-early-earths-reservoir-of-exogenous-organic-matter-and-its-relevance-to-the-emergence-of-prebiotic-chemical-systems/

Cosmic dust fertilization of glacial #prebiotic chemistry on early Earth: https://iopscience.iop.org/article/10.3847/1538-4357/ad1328 -> Do we have cosmic dust to thank for life on Earth? https://ethz.ch/en/news-and-events/eth-news/news/2024/02/haben-wir-das-leben-auf-der-erde-kosmischem-staub-zu-verdanken.html

Geochemical and Photochemical Constraints on S[IV] Concentrations in Natural Waters on #Prebiotic Earth: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023AV000926 -> Loathed by scientists, loved by nature - #sulfur and the #OriginOfLife: https://news.arizona.edu/story/loathed-scientists-loved-nature-sulfur-and-origin-life (a University of Arizona-led study shines a spotlight on sulfur, a chemical element that, while all familiar, has proved surprisingly resistant to scientific efforts in probing its role in the origin of life).

#Olivine May Have Given Life a Jump Start https://eos.org/articles/olivine-may-have-given-life-a-jump-start

Olivine-catalyzed glycolaldehyde and sugar synthesis under aqueous conditions: Application to #prebiotic chemistry https://www.sciencedirect.com/science/article/pii/S0012821X23005691

"this #mineral can help turn #formaldehyde into sugars. The finding could help explain how the earliest organisms obtained sugars, which they use for energy and to build genetic molecules such as RNA and DNA."

#spaceart #astroart

Chemical Soups Around Cool Stars

This artist's conception shows a young, hypothetical planet around a cool star. A soupy mix of potentially life-forming chemicals can be seen pooling around the base of the jagged rocks.

https://www.jpl.nasa.gov/images/pia11980-chemical-soups-around-cool-stars-artist-concept

#space #art #astronomy #astrophysics #astrodon #planet #exoplanet #star #coolstar #chemistry #prebiotic #molecule #hydrogen #cyanide #hydrogencyanide #life #chemicals #soup #soups #pond #meteorites #NASA #Spitzer #SpaceTelescope

A possible way for early life on Earth to survive cosmic radiation https://phys.org/news/2023-12-early-life-earth-survive-cosmic.html

An inorganic mineral-based #protocell with #prebiotic radiation fitness https://www.nature.com/articles/s41467-023-43272-5

"#Deinococcus radiodurans is capable of surviving levels of #radiation that would kill most other living creatures. Study of this #bacteria reveals that it is able to do so because of the amount of #manganese ions in its cell."

Key compounds that could support alien microbes or help #life emerge have been detected in the enormous plume of water that erupts from vents in #Enceladus’ icy shells.

These compounds include hydrogen cyanide, which can be toxic to humans but is also a key building block for synthesizing more complex compounds including amino acids, sugars and nucleobases.

Enceladus might be seen as a favorable #prebiotic system.

#astrobiology https://www.sciencenews.org/article/enceladus-toxic-gas-life-moon-robot

Hydrothermal vents, vernal ponds, impact of space bodies

These are three possible scenarios that could have turned prebiotic chemistry on early Earth into true life-forms.

Infographic: NASA/JPL-Caltech/Lizbeth B. De La Torre

https://exoplanets.nasa.gov/news/1764/life-in-the-lab/

#life #earth #astrobiology #space #nasa #science #research #astronomy #astrodon #hydrothermalvents #vernalponds #prebiotic #chemistry #saturn #moons #enceladus #europa #ocean #world #titan #dragonfly #asteroids #infographic #infographics

Can #comets deliver #prebiotic molecules to rocky #exoplanets? https://royalsocietypublishing.org/doi/10.1098/rspa.2023.0434 -> ‘Bouncing’ comets could deliver building blocks for life to exoplanets: https://www.cam.ac.uk/research/news/bouncing-comets-could-deliver-building-blocks-for-life-to-exoplanets

Observations by the #Curiosity rover at Gale Crater indicating that high-frequency wet–dry cycling occurred in early #Martian surface environments.

As wet–dry cycling can promote #prebiotic polymerization, the Gale evaporitic basin may have been particularly conducive to these processes.

This indicates that some 3.8–3.6 billion years ago #Mars may have sustained an Earth-like climate regime and surface environments favourable to prebiotic evolution.

#astrobiology
https://www.nature.com/articles/s41586-023-06220-3?utm_medium=Social&utm_campaign=nature&utm_source=Twitter#Echobox=1691595901

Synthesis of #prebiotic organics from CO2 by catalysis with #meteoritic and #volcanic particles: https://www.nature.com/articles/s41598-023-33741-8 -> A role for meteoritic #iron in the emergence of #life on Earth: https://www.mpia.de/news/science/2023-07-iron-meteorite

Molecular precursors to #life discovered in the Perseus Cloud.

#prebiotic #cyanide #acetylene #benzene #astrobiology #originsoflife

https://phys.org/news/2023-04-molecular-precursors-life-perseus-cloud.html