{"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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001181151,0.0003417921,0.0002139973,0.001660142,0.0003852647,0.0005374072,0.0003322227,0.0002217802,0.002413398],"category_scores_gemma":[0.0007044281,0.0002007471,0.00009387382,0.0009587579,0.0004541784,0.0005546707,0.0005287686,0.0001978972,0.0003276702],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003767174,"about_ca_system_score_gemma":0.0000969777,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01186435,"about_ca_topic_score_gemma":0.0239431,"domain_scores_codex":[0.9998944,0.000005676683,0.000007430465,0.0000394446,0.00002705218,0.00002598451],"domain_scores_gemma":[0.9993268,0.00008024227,0.0002983057,0.00005288306,0.0001035277,0.0001383043],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0003466328,0.00001654869,0.9635534,0.00005212251,0.00002840158,0.000352979,0.0004553902,0.0001308299,0.02600866,0.00006755512,0.0002151429,0.00877234],"study_design_scores_gemma":[0.000001921682,0.00001126254,0.9991301,0.000002641729,0.000003350637,0.0001646247,0.0001077484,0.00004656433,0.0003437968,0.000007559106,0.000179358,0.000001015396],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9984962,0.0001792734,0.00007565633,0.00001347071,0.000001267161,0.000002378915,0.0002998768,0.00001807007,0.0009137582],"genre_scores_gemma":[0.9991905,0.00007288708,0.0001166444,0.000006960125,0.000002250493,0.000001870523,0.0004048324,0.000004267249,0.0001997094],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01186435,"threshold_uncertainty_score":0.02359056,"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."}}