{"id":"W4409530075","doi":"10.1126/science.ado9966","title":"Carbonates identified by the Curiosity rover indicate a carbon cycle operated on ancient Mars","year":2025,"lang":"en","type":"article","venue":"Science","topic":"Planetary Science and Exploration","field":"Physics and Astronomy","cited_by":50,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary","funders":"","keywords":"Mars Exploration Program; Siderite; Atmosphere (unit); Geology; Astrobiology; Carbonate; Carbon fibers; Carbonate minerals; Atmosphere of Mars; Geochemistry; Impact crater; Mineralogy; Chemistry; Martian; Calcite; Materials science","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00008520403,0.0002382258,0.0001681163,0.0008350529,0.0004709523,0.0003430237,0.000182238,0.0002281116,0.001129697],"category_scores_gemma":[0.0002930826,0.0001531344,0.0001027061,0.0005998994,0.0002948528,0.0002140114,0.0004362321,0.0001541067,0.0001422847],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001940288,"about_ca_system_score_gemma":0.0001487525,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01067386,"about_ca_topic_score_gemma":0.04231104,"domain_scores_codex":[0.99991,0.000007057241,0.000004355086,0.00002045433,0.00003341532,0.0000247394],"domain_scores_gemma":[0.9998228,0.00001372888,0.00007421998,0.00001392454,0.00003951319,0.00003578582],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001324754,0.00001685663,0.8801604,0.00004616627,0.00004680919,0.0003280859,0.001112826,0.0002193392,0.1069754,0.000109091,0.0002706956,0.01058185],"study_design_scores_gemma":[0.000002144352,0.00002779399,0.9953478,0.000003786323,0.000007200825,0.0001681378,0.0002189814,0.0001461212,0.002873445,0.00001318027,0.001188708,0.000002588389],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9987708,0.00004761649,0.00005533195,0.000008510617,0.000001075274,0.000003307305,0.0001661426,0.000007787648,0.000939367],"genre_scores_gemma":[0.9989926,0.00005463054,0.0003297711,0.000008198406,0.000002824633,0.000002756941,0.0002242083,0.000004358175,0.0003805723],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01067386,"threshold_uncertainty_score":0.02122343,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00627328383230591,"score_gpt":0.2317965288245624,"score_spread":0.2255232449922565,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}