{"id":"W2917450758","doi":"10.1126/science.aap8628","title":"Impact craters on Pluto and Charon indicate a deficit of small Kuiper belt objects","year":2019,"lang":"en","type":"article","venue":"Science","topic":"Astro and Planetary Science","field":"Physics and Astronomy","cited_by":150,"is_retracted":false,"has_abstract":true,"ca_institutions":"National Research Council Canada; University of British Columbia","funders":"Natural Sciences and Engineering Research Council of Canada; National Aeronautics and Space Administration","keywords":"Pluto; Impact crater; Astrobiology; Trans-Neptunian object; Geology; Astronomy; Solar System; Physics","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002329137,0.00008598802,0.000102537,0.00008535256,0.00008408823,0.00004079205,0.0002618502,0.00001187192,0.0001842035],"category_scores_gemma":[0.000003551269,0.00006271994,0.00002489766,0.0002870065,0.0002064416,0.0001939405,0.00004686819,0.00007239696,0.00009685098],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000009377075,"about_ca_system_score_gemma":0.0001209715,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002385937,"about_ca_topic_score_gemma":0.000003724088,"domain_scores_codex":[0.9991741,0.00001037949,0.00008768586,0.0002627999,0.0002022578,0.0002627699],"domain_scores_gemma":[0.9996024,0.00002729378,0.00006875914,0.0001779161,0.00002101985,0.0001025585],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00001967502,0.00002781012,0.9344985,0.000004719736,0.000004702413,6.088345e-7,0.0005643173,0.0005201995,0.05374833,0.0006027663,0.00001036231,0.009997996],"study_design_scores_gemma":[0.0001547423,0.0003241218,0.9928612,0.00001868189,0.000003084892,0.000001053228,0.0001710219,0.001401369,0.004791692,0.0001281104,0.00004416762,0.0001007947],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.993899,0.0000135624,0.00006231431,0.00002692712,0.00008482357,0.0001015773,0.0000243249,0.000005698497,0.005781772],"genre_scores_gemma":[0.9995492,7.195265e-7,0.0002104044,0.00003246152,0.00001684898,0.00000102817,0.000004845669,0.00000240025,0.0001820937],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.05836264,"threshold_uncertainty_score":0.2557645,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006685097810099386,"score_gpt":0.2223977378753012,"score_spread":0.2157126400652018,"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."}}