Circular Astronomy

Tag: Kepler-107c

  • Giant Impacts, Planetary Instability, and Debris: Exoplanetary Evolution Analogues

    Abstract The architecture and bulk properties of exoplanetary systems confirm that giant impact (GI) events and subsequent dynamical instability, previously inferred from Solar System remnants, are universal mechanisms of planetary evolution. This review establishes observational analogues across distant systems that validate the outcomes predicted by high-resolution Smoothed Particle Hydrodynamics (SPH) simulations: merging, hit-and-run, erosion, and…

  • Giant Impacts, LHB, and Planetary Evolution: A Comprehensive Review of Solar System Cataclysms

    Abstract: Cataclysmic impact events represent the dominant, stochastic drivers shaping the fundamental composition, dynamics, and architecture of the Solar System. This comprehensive review synthesizes the evolution of planetary impact science, tracing the paradigm shift initiated by Eugene Shoemaker’s discovery of shocked quartz to the current era of high-fidelity numerical modeling. Planetary evolution is governed by…