Exoplanet Habitability Assessment: A Quantitative Analysis of 1,426 Habitable Zone Candidates from the NASA Exoplanet Archive

Abstract We present a comprehensive quantitative analysis of 1,426 exoplanets located within the habitable zone (200-400 K equilibrium temperature) using data from the NASA Exoplanet Archive. Our methodology employs a multi-parameter scoring algorithm incorporating temperature (35%), planetary radius (20%), stellar insolation (15%), stellar type (15%), and distance from Earth (15%) to calculate life probability scores. Analysis identifies one very high probability candidate (K2-3 d, P=0.758), 53 high probability candidates (0.5≤P<0.7), and 97 moderate probability candidates (0.3≤P<0.5). The top candidate, K2-3 d, exhibits Earth-like conditions (305 K, 1.46 R⊕) orbiting an M-dwarf star at 44.1 pc. This work provides a prioritized catalog for atmospheric characterization missions including JWST, ELT, and Ariel. # Full Paper See attached PDF for complete research paper with figures, tables, and references. # Data Files - EXOPLANET_HABITABILITY_ASSESSMENT_PAPER.md: Complete scientific paper - exoplanet_life_analysis.json: Analysis data for 200 candidates - k2_3d_deep_analysis.json: Detailed analysis of top candidate - figures/: Publication-quality figures (300 DPI, PNG + PDF)