Icelandic Hot Springs as a Prebiotic Analog: Wet-Dry Cycling Effects on the Stability of Nucleotides and Nucleic Acids - Astrobiology The hot spring hypothesis for the origin of life proposes that naturally occurring wet-dry cycles in small bodies of water could have driven condensation reactions on prebiotic Earth

Icelandic Hot Springs as a Prebiotic Analog: Wet-Dry Cycling Effects on the Stability of Nucleotides and Nucleic Acids
astrobiology.com/2026/03/icel... #astrobiology #originoflife #genomics

A Formal Physical Framework for the Origin of Life: Dissipation-Driven Selection of Evolving Replicators - Astrobiology The emergence of life from inanimate matter presents a thermodynamic challenge

A Formal Physical Framework for the Origin of Life: Dissipation-Driven Selection of Evolving Replicators
astrobiology.com/2026/03/a-fo... #astrobiology #originoflife #genomics

Atmospheric Oxygen And Methane On The Early Earth - Astrobiology The habitability of the early Earth was affected by various factors.

Atmospheric Oxygen And Methane On The Early Earth
astrobiology.com/2026/03/atmo... #astrobiology #originoflife

'Becoming #Earth: How Our Planet Came to Life'. " @ferrisjabr.bsky.social traveled..world to find examples of this creation..Ferris now believes..#life doesn’t just exist on..planet..but that..planet itself..alive" | TheWild www.youtube.com/watch?v=Yfyj... #OriginOfLife #EarthSystem #zoogeochemistry

Gypsum Sustains Microbial Life Under Extreme Conditions – This Could Help Us Study Mars - Astrobiology Terraces near Flamencos Lagoon in the southeastern Salar de Pajonales (Chile)

Gypsum Sustains Microbial Life Under Extreme Conditions – This Could Help Us Study Mars
astrobiology.com/2026/03/gyps... #astrobiology #Mars #originoflife

Atmospheric Supply Of HCN Is Not The Rate Limiting Step For Prebiotic Chemistry Across Rocky Exoplanets - Astrobiology Hydrogen cyanide (HCN) is crucial for the RNA World hypothesis, forming biomolecules essential for early life

Atmospheric Supply Of HCN Is Not The Rate Limiting Step For Prebiotic Chemistry Across Rocky Exoplanets
astrobiology.com/2026/03/atmo... #astrobiology #astrochemistry #originoflife

'Becoming #Earth: How Our Planet Came to Life'. "@ferrisjabr.bsky.social traveled..world to find examples of this creation..Ferris now believes..#life doesn’t just exist on..planet..but that..planet itself..alive" | TheWild www.youtube.com/watch?v=Yfyj... #OriginOfLife #EarthSystem #zoogeochemistry

About This is a web page with the blog posts of Axel Kleidon. As I am still exploring the options of WordPress, the look of this webpage is probably going to change.

'Bits, blog posts, and links on #thermodynamics and #EarthSystem #science from Axel Kleidon's research group at the Max-Planck-Institute for #Biogeochemistry in Jena, Germany' | Earth System earthsystem.org #EarthSystem #complexity #SystemThinking #SystemDynamics #GaiaHypothesis #OriginOfLife

Life's building blocks thrive in space, new asteroid study reveals New analysis reveals all five nucleobases in pristine asteroid material, suggesting life's building blocks form naturally in space and may have reached early Earth.

Life's building blocks thrive in space, new asteroid study reveals

#Astrobiology #OriginOfLife #SpaceScience #Ryugu #AusNews

thedailyperspective.org/article/2026-03-21-lifes...

We keep finding the raw material of DNA in asteroids—what's it telling us? https://arstechni.ca #originoflife #asteroids #astronomy #chemistry #Science #DNA

Every building block of DNA and RNA has been found on an asteroid Explore how Ryugu asteroid nucleobases DNA RNA building blocks support theories of life's origin beyond Earth.

1/2

On March 16, researchers confirmed that all five primary nucleobases of DNA and RNA are present in space. By finding the final missing ones on the asteroid Ryugu, we now have the complete set.

Paper
www.nature.com/articles/s41...

🧬☄️🔬🥒🔭
#Astrobiology
#OriginOfLife
#abiogenesis

Ryugu asteroid samples contain all DNA and RNA building blocks, bolstering origin-of-life theories All the essential ingredients to make the DNA and RNA underpinning life on Earth have been discovered in samples collected from the asteroid Ryugu, scientists said Monday.

#Ryugu #asteroid samples contain all #DNA and #RNA building blocks, bolstering #originoflife theories

phys.org/news/2026-03...

Compositional Memory Matters For Early Molecular Systems - Astrobiology The error catastrophe refers to the proliferation of non-functional molecules in conditions where molecular replication has low accuracy

Compositional Memory Matters For Early Molecular Systems
astrobiology.com/2026/03/comp... #astrobiology #genomics #Originoflife

🧪 Tiny molecular differences can rewrite big origin-of-life questions!
HFSP-supported research shows simple coacervate droplets could have supported early RNA chemistry, reshaping ideas about the transition from #RNA to #DNA worlds.

#OriginOfLife #sts #HFSP
🔗 zurl.co/ZMFM3

Registration Is Now Open For Origins 2026 - Astrobiology Origins 2026 is an international conference

Registration Is Now Open For Origins 2026
astrobiology.com/2026/03/regi... #astrobiology #originoflife

Sequence Motif Dynamics In RNA Pools - Astrobiology In RNA world scenarios pools of RNA oligomers form strongly interacting

Sequence Motif Dynamics In RNA Pools
astrobiology.com/2026/03/sequ... #astrobiology #originoflife #RNAWorld

Molecular Complexity Constrained Early Amino Acid Recruitment into the Genetic Code - Astrobiology Previously proposed chronologies of amino acid incorporation into the genetic code rely on consensus rankings derived from prebiotic synthesis experiments, biosynthetic pathways, or genomic trends.

Molecular Complexity Constrained Early Amino Acid Recruitment into the Genetic Code
astrobiology.com/2026/03/mole... #astrobiology #genomics #originoflife

Metrology of Complexity and Implications for the Study of the Emergence of Life - Astrobiology One of the longest standing open problems in science is how life arises from non-living matter.

Metrology of Complexity and Implications for the Study of the Emergence of Life
astrobiology.com/2026/03/metr... #astrobiology #originoflife #genomics

Life Forms Can Planet Hop On Asteroid Debris – And Survive - Astrobiology Tiny life forms tucked into debris from an asteroid hit could catapult to other planets – including Earth – and survive, a new Johns Hopkins University study finds.

Life Forms Can Planet Hop On Asteroid Debris – And Survive
astrobiology.com/2026/03/life... #astrobiology #panspermia #originoflife

Prebiotic Resource Constraints And The Origin Of Life: A Linear Logic Framework - Astrobiology The origin of life is a complex scientific problem demanding interdisciplinary approaches

Prebiotic Resource Constraints And The Origin Of Life: A Linear Logic Framework
astrobiology.com/2026/03/preb... #astrobiology #originoflife

On The Nature Of The Earliest Known Lifeforms - Astrobiology Microfossils from the Paleoarchean Eon are the oldest known evidence of life.

On The Nature Of The Earliest Known Lifeforms
astrobiology.com/2026/02/on-t... #astrobiology #OriginOfLife #evolution

A Parasitic Origin For The Ribosome? - Astrobiology Ribosomes are the components of cells that read RNA and build proteins

A Parasitic Origin For The Ribosome?
astrobiology.com/2026/02/a-pa... #astrobiology #OriginOfLife #evolution #genomics

Asgard Archaeal Origin Of Microtubules - Astrobiology Eukaryotic cells change their shapes, actively segregate their DNA and contain membrane network

Asgard Archaeal Origin Of Microtubules
astrobiology.com/2026/02/asga... #astrobiology #OriginOfLife #evolution #genomics

Emergence Of A Potentially Ancestral ATP-synthesizing Activity Under Prebiotic Amino Acid Constraints - Astrobiology The earliest enzymes are thought to have been composed of the limited amino acid repertoire available on prebiotic Earth.

Emergence Of A Potentially Ancestral ATP-synthesizing Activity Under Prebiotic Amino Acid Constraints
astrobiology.com/2026/02/emer... #astrobiology #OriginOfLife #evolution #genomics

Distinguishing Life From Non-life Via Molecular Frontier Orbital Energy Gaps - Astrobiology Amino acids (AAs) are a key target in the search for life beyond Earth due to their extensive role in the machinery of all known life

Distinguishing Life From Non-life Via Molecular Frontier Orbital Energy Gaps
astrobiology.com/2026/02/dist... #astrobiology #OriginOfLife #evolution #genomics

Experimental And Numerical Modeling Of Liposome Congregation In Meteorite Craters Of Early Earth - Astrobiology This paper provides experimental and numerical evidence supporting the occurrence of liposome congregation at the floors of meteor craters on Early Earth

Experimental And Numerical Modeling Of Liposome Congregation In Meteorite Craters Of Early Earth
astrobiology.com/2026/02/expe... #astrobiology #OriginOfLife #evolution #genomics

Original post on c.im

By constructing family trees of the oldest and most divergent forms of life, phylogeneticists have tried to push back to the last universal common ancestor (LUCA).

One such attempt created a family tree of 102 species, focusing on microorganisms, as those are the oldest forms of life. They […]

A Break In A Longstanding Mystery About The Origin Of Complex Life - Astrobiology The most widely accepted scientific explanation for the arrival of all complex life on Earth has had an unsolved mystery at its heart.

A Break In A Longstanding Mystery About The Origin Of Complex Life
astrobiology.com/2026/02/a-br... #astrobiology #AI #OriginOfLife

A Small Polymerase Ribozyme That Can Synthesize Itself And Its Complementary Strand - Astrobiology The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life.

A Small Polymerase Ribozyme That Can Synthesize Itself And Its Complementary Strand
astrobiology.com/2026/02/a-sm... #astrobiology #genomics #synbio #originoflife

Theoretical Perspective On Synthetic Life: Learning From The Origin Of Life - Astrobiology Creating a man‐made life in the laboratory is one of life science’s most intriguing yet challenging problems.

Theoretical Perspective On Synthetic Man‐made life: Learning From The Origin Of Life
astrobiology.com/2026/02/theo... #astrobiology #synbio #biotechnology #originoflife