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Book . 2025
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ZENODO
Book . 2025
License: CC BY NC SA
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Book . 2025
License: CC BY NC SA
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ZENODO
Book . 2025
License: CC BY NC SA
Data sources: Datacite
ZENODO
Book . 2025
License: CC BY NC SA
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NASA's RNA World Experiments and the Matter World Hypothesis: A Comprehensive Critique

Authors: Reza Hashemi;

NASA's RNA World Experiments and the Matter World Hypothesis: A Comprehensive Critique

Abstract

The RNA World Hypothesis (RWH) posits that self-replicating RNA molecules were the primary precursors to life, functioning as both genetic material and catalysts in Earth’s prebiotic environment. Supported by NASA’s Astrobiology Program, RWH experiments have simulated early Earth conditions, such as tidal pools (pH 6-6.5, 25-50°C, 0.5 M NaCl) and hydrothermal vents (60-100°C, 10-100 atm), as well as extraterrestrial environments like the icy moons Europa and Enceladus (0°C, 0.1-1 atm, pH 7-8). Despite decades of research, RWH faces significant challenges: RNA’s chemical instability in aqueous settings, high replication error rates leading to “error catastrophe,” unsustainable nucleotide synthesis, vesicle instability, non-prebiotic ribozyme designs, and energy-dependent hybrid systems. These limitations suggest that RNA alone may not suffice as the sole precursor to life, prompting a critical reevaluation of the model.The Matter World Hypothesis (MWH) offers a paradigm shift, envisioning life’s origin as a cooperative “matter soup” comprising RNA, DNA, peptides, lipids, carbohydrates, and catalysts, driven by molecular affinity, environmental gradients (e.g., temperature, pH, salinity), extended timescales (10⁶-10⁷ years), and natural selection. Unlike RWH’s RNA-centric focus, MWH emphasizes multi-molecular synergy, where each component enhances the system’s stability, replication, and catalytic efficiency, forming robust protocells. Supported by computational simulations (e.g., molecular dynamics [MD], dissipative particle dynamics [DPD], agent-based models [ABM]) and experimental data from global research spanning over 15 countries (e.g., Japan, China, Sweden, Australia, India, Brazil), MWH addresses RWH’s shortcomings and aligns with NASA’s shift toward non-RNA-centric models, such as peptide nucleic acids (PNA) and threose nucleic acids (TNA), as well as icy moon exploration (e.g., Europa Clipper mission, launched October 2024).This e-book provides an exhaustive critique of six NASA RWH projects, focusing on replication, stability, nucleotide synthesis, vesicle encapsulation, ribozyme catalysis, and metabolism-first hybrid systems. It integrates MWH perspectives and incorporates new studies to strengthen the analysis.

Keywords

Origin of life, NASA, RNA World Hypothesis, Matter World Hypothesis, co-evolution, protocell, metabolic networks, translation systems, prebiotic environments, computational simulations, empirical validation, refute RWH, LUCA, Archaea.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green