What does this research mean for the field?

Mega-impacts act as periodic thermodynamic resets that prevent Earth from entering permanent glacial states by sustaining elevated geothermal baselines through deep lithospheric penetration and greenhouse amplification. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.ESTABLISHES_NEW_DIRECTION.

What question did this study set out to answer?

This research aims to formalize the role of mega-impacts in maintaining Earth's thermal state and preventing glacial conditions.

May 30, 2026Open Access

Cosmic Thermal Reset: Mega-Impacts as Long-Term Drivers of Planetary Heat Retention and Habitability Across the Phanerozoic

Key Points

This research aims to formalize the role of mega-impacts in maintaining Earth's thermal state and preventing glacial conditions.
Developed two complementary pathways: the conventional indirect pathway and the CFAB deep penetration pathway.
Integrated the proposed mechanisms with historical climate data, particularly PhanDA curve correlations.
Hypothesized the Wilkes Land anomaly as a trigger for significant geological events.
The CFAB pathway significantly impacts mantle convection and core heat flux.
Correlations identified at ~252 Ma, ~66 Ma, and ~56 Ma are linked to greenhouse conditions.
The hypothesis suggests a connection between the Wilkes Land anomaly and major geological changes like the Siberian Traps.

Abstract

Section 11 is added. The authors welcome correspondence from researchers interested in peer review, collaborative validation, or arXiv endorsement in the fields of cosmology, astrophysics, or theoretical physics. founder@humansp. org. Large-scale extraterrestrial impacts have played a dual role in planetary evolution: catastrophic destruction and long-term thermal state maintenance. This paper proposes and formalizes the mechanism by which mega-impacts, operating within the CFAB (Crust-Fracturing Antipodal Bullet) theoretical framework, acted as periodic thermodynamic resets that prevented Earth from entering permanent glacial states. Two complementary pathways are developed: the conventional indirect pathway (volatile delivery, greenhouse amplification, methane hydrate destabilization, Large Igneous Provinces) and the CFAB deep penetration pathway, in which sufficiently large impactors fracture the lithosphere, perturb mantle convection, and alter core heat flux, sustaining elevated geothermal baselines for millions of years. Integration of both pathways explains the dominantly greenhouse character of the PhanDA curve (Judd et al. 2024, Science) and correlation peaks at ~252 Ma, ~66 Ma, and ~56 Ma. The Wilkes Land subglacial anomaly (~480-510 km, ~252 Ma) is presented as a working hypothesis for the causal trigger of the Siberian Traps and the P-T boundary super-greenhouse. Suplemento to: Deep Impacts of Asteroids or Comets with Metallic Cores that Penetrate the Earth: https: //doi. org/10. 5281/zenodo. 18204600 The Origin of the Universe: https: //doi. org/10. 5281/zenodo. 20364622 https: //orcid. org/0009-0006-1089-9023. Contact: founder@humansp. org Part of the Proyecto A. D. A. (Architecture of Survival) series - Preprint 20. A chapter of: Survival Architecture: https: //play. google. com/store/books/details? id=epWgEQAAQBAJ Arquitectura de la supervivencia: https: //play. google. com/store/books/details/AlejandroD%C3%ADazAldanaArquitecturadeₗaSupervive? id=DpCgEQAAQBAJ

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